AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 25 May Second Shift Part 7

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Q-27 In toroid magnetic field on axis will be radius = cm, current = A, turns = 250, permeability = 700.

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

Q-28 The current density is a solid cylindrical wire of radius R, as a function of radial distance r is given by. The total current in the radial region will be:

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

Image radial region

Image Radial Region

Q-29 In Maxwell’s speed distribution curve, for gas, the average of |relative velocity| between two molecules at will be:

Options:

(1)

(2)

(3)

(4) Zero

Answer: (2)

Solutions:

Image of relative velocity

Image of Relative Velocity

Q-30 gas is heated from temperature to through an isobaric process. Then find the change in the entropy of the gas.

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

Q-31 Assertion: In desert area, days get hot fastly and the nights get cold fastly.

Reason: The specific heat capacity for air and land is less than that of water.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (1)

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