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# AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 25 May First Shift Part 3

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Q-11: Modern treatment method P. E. T. is based on!

Options:

(1) Proton emission

(2) Positron emission

(3)

(4) Particle emission

Answer: (2)

Solutions:

Positron emission tomography is a nuclear medicine functional imaging technique used to observe metabolic processes to diagnosis of disease

, used to detect cancer, heart prob. brain order

Q-12: A gun applies a force F on a bullet, which is given by . The bullet emerges out with speed . Then find out the impulse exerted till force on bullet becomes zero:

Options:

(1)

(2)

(3)

(4)

Answer: (3)

Solutions:

Given

Q-13: A proton is projected with velocity . In a region where magnetic field and electric field . Then find out the net acceleration of proton:

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Q-14: For the system given below, find the angular frequency of oscillation?

Options:

(1)

(2)

(3)

(4)

Answer: (3)

Solutions:

By energy method

Q-15: For a telescope, focal length of objective lens is and focal length of eye piece is . If tube length is , then find the magnification:

Options:

(1)

(2)

(3)

(4)

Answer: (2)

Solutions: