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

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Q-14: What is the dimension of Luminous flux?

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Dimension of Luminous flux is.

Q-15: Two circular loops having same radius and same current a are placed are placed along same axis as shown. If distance between their centres is, find net magnetic field at of point.

Image circular loops radius

Image Circular Loops Radius

Options:

(1)

(2)

(3)

(4)

Answer: (3)

Solutions:

At point P, magnetic field will be in same direction by both coils.

Q-16: If half-life of an element is hours then how much of its percent will decay in 10th to 11th hours. Initial activity

Options:

(1)

(2)

(3)

(4)

Answer: (1)

Solutions:

Let active Nuclei at is then,

Active nuclei at hour

Active nuclei at hour

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