AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 25 May First Shift Part 2

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Q-5: A current of is passing through a metallic wire of cross sectional area. If the density of the aluminium conductor is considering aluminum gives 1 electrons per atom for conduction find the drift speed of the electrons if molecular weight of aluminium is.

Options:

(1)

(2)

(3)

(4)

Answer: (3)

Solutions:

Q-6: If speed of sound in air in then find the number of tones present in an open organ pipe of length 1 m whose frequency if .

Options:

(1)

(2)

(3)

(4)

Answer: (4)

Solutions:

Q-7: An electrons is revolving in orbit. What will be the magnetic field at the centre of hydrogen atom.

Options:

(1)

(2)

(3)

(4)

Answer: (4)

Solutions:

Q-8: A light of wavelength is incident on a young’s double slit. The distance between slits and screen is and distance between slits is. If screen moves with a speed, with what speed first maxima will move?

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Q-9: An electron collides elastically with atom and excites it from ground state to. Find out the energy transfer to H-like atom

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Q-10: A transformer with turn’s ratio is connected to a supply. If primary and secondary circuit resistances are and respectively then find out power out put

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Let transformer ideal

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