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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-25Number 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: