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# AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 25 May Second Shift Part 6

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Q-22 A capacitor of capacitance having dielectric slab of dielectric strength and potential difference . Calculate the area of plate

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Since,

From (i)

Q-23 An ideal gas initially at pressure bar is being compressed from volume and its temperature decreases from then find final pressure of gas.

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Q-24 Distance between sun and earth is , temperature of sun , radius of sun , if emissivity of earth is , then find out temperature of earth in thermal equilibrium.

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

For thermal equilibrium

Energy received by earth = Energy emitted by earth

Q-25 Number of visible lines in Balmer series

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions:

First four lines are only in visible region. Line goes in region.

Q-26 Ratio of electric and magnetic field due to moving point charge if its speed is .

(1)

(2)

(3)

(4)

Answer: (1)

Solutions: