Work, Energy and Power - Solved Test Series, Questions Bank with Hints, Solutions for NEET (AIIMS, JIPMER), JEE Main, JEE Advanced (IIT), NEST

Physics Solutions for NEET, JEE Main, IIT, AIIMS, JIPMER, WBJEE : Work, Energy and Power

Here you will get carefully selected 10 MCQ practice questions in our each Test Series with hints & solutions (given at the end) from the Physics chapter - Work, Energy and Power.

All these are typically important questions for NEET-UG, JEE Main & Advanced (IIT) AIIMS, JIPMER, COMEDK, WBJEE, MBBS Admission Tests, Engineering Entrance Exams, NEST and other such competitive exams.

Topics / Syllabus for IIT JEE Main & Advanced, NEET (AIPMT, JIPMER):

Work done by a constant force and by a variable force, Unit of Work, Energy and Power, Work Energy, Theorem. Elastic and in-elastic collisions in one and two dimensions, Notions of Work and Energy, Law of Conservations of Energy, Potential and Kinetic Energies, Gravitational Potential Energy, and its conversion to Kinetic energy, Potential Energy of a spring. Conservative and Non-conservative Forces, Different forms of Energy, Three types of Equilibrium, Mass - Energy equivalence. Power.   

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Solved MCQ Test Series – Set 1 (Q. No. 1-10)

Question 1: The figures below represent the total potential energy ‘U’ of a function of the inter-atomic distance ‘r’. Which diagram corresponds to stable molecules found in nature -  

Question 2: A 50kg man with 20kg load on his headclimbs up 20 steps of 0.25m height each. The work done by the man on the block during climbing is -  

a. 5J        b. 350J

c. 1000J  d. 3540J

Question 3: In the case of conservative force -

a. work done is independent of path

b. work done in a close loop is zero

c. work done against conservative force is stored in the form of potential energy

d. all the above.

Question 4: A man is sitting on a swing at a maximum height of 5m above the ground. When the swing passes through the mean position which is 2m above the ground its velocity will be approximately -

a. 7.6 m/s     b. 9.8 m/s

c. 6.26 m/s   d. 98 m/s.

Question 5: A body loses half of its velocity on penetrating 6cm in a wooden block. How much will it penetrate more before coming to rest?  

a. 1cm     b. 2cm

c. 3cm     d. 4cm

Question 6: The work done by all the forces (external & internal) on a system equals to the change in -  

a. only kinetic energy

b. only potential energy

c. total energy

d. none of these

Question 7: For the path PQR in a conservative force field as shown in figure, the amount of work done in carrying a body from P to Q and from Q to R are 5J and 2J respectively. The work done in carrying the body from P to R will be equal to -

a. 7J        b. 3J

c. √21J    d. zero

Question 8: A block of mass ‘m’ is lowered with the help of a rope of negligible mass through a distance ‘d’ with an acceleration of g/3. Work done by the on the block is,

Question 9: A particle of mass ‘m’ at rest is acted upon by a force ‘F’ for time ‘t’. The kinetic energy of the particle after an interval ‘t’ is -    

a. F²t²/m        b. (Ft)²/2m

c. (Ft)²/3m     d. Ft/2m

Question 10: A man tries to push a wall and fails to displace it. He does -

a. negative work    b. positive work

c. no work              d. none of these

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Physics Practice Questions for NEET, JEE Main, IIT, AIIMS, JIPMER: 

Work, Energy and Power

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Hints & Solutions of MCQ Test Series – Set 1 (Q. No.1–10)

Answer 1: a. (Hint: Among four diagrams in this diagram, ‘U’ is minimum for some value of ‘r’). Answer 2: c. (W = 20 x 10 x 20 x 0.25 = 1000J) Answer 3: d. Answer 4: a. Answer 5: b. Answer 6: a. Answer 7: a.

Answer 8: b. Answer 9: b.

Answer 10: c.

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Solved Chemistry MCQ Test Series on Chemical Bonding and Molecular Structure for NEET, IIT, JEE main

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On this page you have chemistry practice questions answers (MCQ test series) for NEET, JEE main, NEST, other admission tests, Engineering and Medical Entrance Exams.

Chemical Bonding and Molecular Structure

Syllabus :

Chemical combination; Kossel-Lewis Approach to Chemical Bonding; Lattice Energy; Covalent Bond; Octet Rule; Ionic and electrovalent Bond; Electrovalency; Covalency; Writing formula of an ionic compound; Coordinate Bond; Metallic Bond; Bond parameters - bond length, bond angle, bond enthalpy, bond order, resonance structures, polarity of bonds; The Valence Shell Electron Pair Repulsion (VSEPR) Theory; Valence Bond Theory; Geometry of molecules; Hybridisation; Molecular Orbital Theory; Bonding in some Homonuclear Diatomic Molecules; Hydrogen Bonding

Chemistry Solution: Chemical Bonding and Molecular Structure

MCQ Test Series – Set 4 (Q No.31-40)

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Question 31: Among the following compounds the one that is polar and has the central atom with sp² hybridisation is:

a. H₂CO₃

b. SiF₄

c. BF₃

d. HClO₂

Question 32: The bond order –

a. Can have negative value

b. Is any number other than zero

c. Is any integer

d. Can have any value including zero

Question 33: Which of the following molecular species has unpaired electron(s)?

a. N₂

b. F₂

c. O₂^-

d. O₂^2-

Question 34: Which compound has planar structure?

a. XeF₄

b. XeOF_2­

c. XeO₂F₂

d. XeO₄

Question 35: Molecular orbital theory is preferred over valence bond theory as it can explain:

a. Bond strength

b. Geometry of molecule

c. The magnetic nature of the molecule

d. None of the above

Question 36: Acetylene consists of –

a. Both sigma and pi bonds

b. Sigma bond only

c. Pi bond only

d. None of these

Question 37: Which among the following has the highest volatility?

a. H₂O

b. H₂S

c. H₂Se

d. H₂Te

Question 38: Which one of the following is not the resonating structure of CO₂:

a. O ≡ C = O

b. O = C = O

c. ^–O – C ≡ O⁺

d. ⁺O ≡ C – O^-

Question 39: Born Haber cycle is based on:

a. Law of conservation of mass

b. Law of conservation of energy

c. Fajan’s law

d. Charle’s law

Question 40: Which of the following models best describes the bonding within a layer of the graphite structure?

a. Metallic bonding

b. Ionic bonding

c. Non-metallic covalent bonding

d. Van der Waals forces

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MCQ Test Series: Chemical Bonding and Molecular Structure

Solutions of Set 4 (Q. No.31 – 40)

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Answer 32: (d). Answer 33: (c). Answer 34: (a). Answer 35: (c). Answer 36: (a). Answer 37: (b). Answer 38: (a). Answer 39: (b). Answer 40: (c).

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Diversity in The Living World, Biological Classification - NEET questions answers

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Diversity in The Living World - Biological Classification

Solutions of Previous questions -

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The Living World and Biological Classification

Multiple Choice Questions (MCQs) – Set 4 (Q. No. 31 - 40)

Question 31: All algae possess

a. Chl a, and b

b. Chl a, carotenes and phycobilins

c. Chl b, and carotenes

d. Chl a, and carotenoids

Question 32: Plants belonging to different classes, with a few similar characters are assigned to a category called

a. Phylum    b. Order    c. Division    d. Genus

Question 33: Prokaryotes possess

a. Nucleus    b. Nucleoid    c. Nucleolus    d. None of the above

Question 34: Kingdom Monera includes

a. Bacteria    b. Fungi    c. Archaebacteria    d. All

Question 35: No. of kingdom formed by Whittaker on the basis of mode of nutrition-

a. 2    b. 3    c. 4    d. 5

Question 36: Plant classification proposed by Carlous Linnaeus was artificial because it was based on

a. Only a few morphological characters

b. Anatomical characters which are adaptive in nature

c. Physiological traits along with morphological characters

d. Evolutionary tendencies which are diverse

Question 37: Systema Naturae was written by

a. Linnaeus    b. Aristotle    c. Darwin    d. de Candolle

Question 38: Viruses are considered as

a. Advanced than bacteria

b. Advanced than algae

c. Advanced than protozoa

d. Most primitive

Question 39: Which statement is false –?

a. In amoeba contractile vacuole is responsible for osmoregulation

b. During the formation of pseudopodia plasma gel change into plasma sol

c. Longitudinal ridges are found in endoplasm in amoeba

d. Change in viscosity theory is given by Odem

(1) a and b    (2) b and c    (3) c and d   (4) a and d 

Question 40: Biodiversity is referred as

a. Number and type of organism present on earth

b. Number of only animal species

c. Number of only plant species

d. Number of underwater species

Diversity in The Living World, Biological Classification (Syllabus): 

What is Living? Taxonomic Categories. Taxonomical Aids. Biodiversity; Three domains of life; Concept of species and taxonomical hierarchy; Binomial nomenclature; Tools for study of Taxonomy – Museums, Zoos, Herbaria, Botanical gardens.

Need for classification; Taxonomy & Systematics and Binomial system of nomenclature. Kingdom Systems of Classification.  Classification from two Kingdoms to five Kingdom Systems. Major groups of each Kingdom along with their silent features (Monera, including Archaebacteria, Cyanobacteria and Bacteria, Protista - Dinoflagilates and Diatoms, Fungi, Plantae, Animalia): Viruses, Lichens. Kingdom: Monera, Protista, Fungi, Plantae, Animalia. Viruses. Viroids.

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NEET Practice Questions: The Living World and Biological Classification

(Answers)

Solved Biology MCQ Test Series – Set 4 (Q. No. 31 – 40)

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Answer 31: (d).  Answer 32: (c).   Answer 33: (b).   Answer 34: (d).   Answer 35: (b). 

Answer 36: (a).   Answer 37: (a).   Answer 38: (d).  Answer 39: (3).   Answer 40: (a).

 Diversity in the Living World, Biological Classification - More Questions Answers  

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Plant Kingdom | Classification of Plants into Groups with Features | Plant Life Cycles | Questions for NEET, MBBS Entrance

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Diversity in The Living World 
India Study Solution Biology Test Series

Biology Objective Questions : Practice Questions Answers

India Study Solution Test Series – Set 3 (Q. No.21 - 30)

Question 21: Sulphur shower is caused by

a. Release of pollens from Pinus male cones in conifer forest

b. Acid rains

c. Sulphur deposition

d. None of the above

Question 22: Rhizopore of Selaginella is –

a. Root

b. Stem

c. New organ or organ sui-generis

d. None of these

Question 23: Floridian starch is found in –

a. Chlorophyceae

b. Rhodophyceae

c. Cyanophyceae

d. Chrysophyceae

Question 24: Calyptra is formed from

a. Spore

b. Oospore

c. Venter

d. Archaegonium

Question 25: Compared with the gametophytes of the bryophytes, the gametophytes of vascular plants tend to be

a. Smaller and to have smaller sex organs

b. Smaller but to have larger sex organs

c. Larger but to have smaller sex organs

d. Larger and to have larger sex organs

Question 26: In Pinus, male cone bears a large number of

a. Microsporophylls

b. Ligules

c. Megasporophylls

d. Anthers

Question 27: In bryophytes

a. Both generations are independent

b. Gametophytes are dependent upon sporophytes

c. Sporophytes are always autotrophic

d. Sporophytes are dependent upon gametophytes

Question 28: Brown hair found at the base of Pteris leaves are

a. Modified stipules

b. Modified leaflets

c. Ramenta

d. Spines

Question 29: The smallest plant group gymnosperm has how many species?

a. 640    b. 300    c. 1000    d. 900

Question 30: In which gymnosperm, archegonia are absent

a. Gnetum

b. Welwischia

c. Both a and b

d. None of the above

Topics (Syllabus): Plant Kingdom | Classification of Plants | Plant Life Cycles and Alternation of Generations 

Salient features, treatment of Plant Kingdom. Classification of plants into major groups - Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms (three to five salient and distinguishing features and at least two examples of each category). Angiosperms - classification up to class, characteristic features and examples). Ulothrix and Spirogyra. Albugo. Mucor, Rhizopus and Yeast. Ricca and Funaria. Pteridium and Selaginella. Cycas and Pinus. Plant Life Cycles and Alternation of Generations. 

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Diversity in the Living World - Plant Kingdom | Plants Classification Features

Solutions of ISS Test Series – Set 3 (Q.No.21 – 30)

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Answer 21: (a).   Answer 22: (c).   Answer 23: (b).   Answer 24: (c).   Answer 25: (a).   Answer 26: (a).   Answer 27: (d).   Answer 28: (b).   Answer 29: (d).   Answer 30: (c).

Plant Kingdom | Classification of Plants into Groups with Features | Plant Life Cycles  - More Questions, Solved Test Series 

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