In which case there is maximum extension in the wire, if same force is applied on each wire

(a) L = 500 cm, d = 0.05 mm

(b) L = 200 cm, d = 0.02 mm

(c) L = 300 cm, d = 0.03 mm

(d) L = 400 cm, d = 0.01 mm

Concept Questions :-

Hooke's law
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The extension of a wire by the application of load is 3 mm. The extension in a wire of the same material and length but half the radius by the same load is -

(a)12 mm

(b)0.75 mm

(c)15 mm

(d)6 mm

Concept Questions :-

Hooke's law
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The isothermal elasticity of a gas is equal to

(a) Density                                     (b) Volume

(c) Pressure                                    (d) Specific heat

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The adiabatic elasticity of a gas is equal to

(a) $\gamma ×$density                                (b) $\gamma ×$volume

(c) $\gamma ×$pressure                              (d) $\gamma ×$specific heat

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The specific heat at constant pressure and at constant volume for an ideal gas are ${C}_{p}$ and ${C}_{v}$ and its adiabatic and isothermal elasticities are ${E}_{\varnothing }$ and${E}_{\theta }$  respectively. The  ratio of ${E}_{\varnothing }$ to ${E}_{\theta }$ is

(a) ${C}_{v}/{C}_{p}$

(b) ${C}_{p}/{C}_{v}$

(c) ${C}_{p}{C}_{v}$

(d) $1/{C}_{p}{C}_{v}$

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

The compressibility of water is $4×{10}^{-5}$ per unit atmospheric pressure. The decrease in volume of 100 cubic centimeter of water under a pressure of 100 atmosphere will be -

(a) 0.4 cc           (b) $4×{10}^{-5}cc$

(c) 0.025 cc       (d) 0.004 cc

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

If a rubber ball is taken at the depth of 200 m in a pool, its volume decreases by 0.1%. If the density of the water is $1×{10}^{3}kg/{m}^{3}$ and $g=10m/{s}^{2}$, then the volume elasticity in  will be

(a) ${10}^{8}$                                        (b) $2×{10}^{8}$

(c)${10}^{9}$                                         (d) $2×{10}^{9}$

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

When a pressure of 100 atmosphere is applied on a spherical ball, then its volume reduces by 0.01%. The bulk modulus of the material of the rubber in  is:

(a) $10×{10}^{12}$                                (b) $100×{10}^{12}$

(c) $1×{10}^{12}$                                  (d) $20×{10}^{12}$

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A uniform cube is subjected to volume compression. If each side is decreased by 1%, then bulk strain is

(a) 0.01                              (b) 0.06

(c) 0.02                              (d) 0.03

Concept Questions :-

Stress-strain
High Yielding Test Series + Question Bank - NEET 2020

Difficulty Level:

A ball falling in a lake of depth 200 m shows 0.1% decrease in its volume at the bottom. What is the bulk modulus of the material of the ball

(a) $19.6×{10}^{8}N/{m}^{2}$                (b) $19.6×{10}^{-10}N/{m}^{2}$

(c) $19.6×{10}^{10}N/{m}^{2}$               (d) $19.6×{10}^{-8}N/{m}^{2}$

Concept Questions :-

Stress-strain