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# AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 26 May Second Shift Part 4

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Q-16: Calculate the mean error in five observations:

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Mean of the errors

Q-17: Calculate focal length of given lens if the magnification is .

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Magnification for lens

Q-18:

Resistance of secondary coil will be:

Options:

(1)

(2)

(3)

(4)

Answer: (3)

Solutions:

Q-19: Dimension of magnetic flux

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Q-20: At which excited state of radius of . Will be same as H atoms and electron in ground state

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

So first excited state