BITSAT (Birla Institute of Technology & Science Admission Test) Physics: Questions 376 - 380 of 382

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Question 376

Question

MCQ▾

A substance reduces to of its original mass in 2 hours. The half-life period of the substance will be –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 377

Question

MCQ▾

A balloon is descending at constant acceleration , The mass of the balloon is . When a mass is released from the balloon, it starts rising with the same acceleration . Assuming that the volume does not change when the mass is released, when is the value of ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 378

Question

MCQ▾

At a certain place, the horizontal component of earth՚s magnetic field is, times of its vertical component, the angle of dip at that place is,

Choices

Choice (4)Response

a.

b.

c.

d.

Question 379

Question

MCQ▾

Under the action of a force, a body moves such that its position as a function of time is given by where is in metre and in second. The work done by the force in the first is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question 380

Question

MCQ▾

The fact that light of transverse wave derives its evidence by the support from the observation that –

Choices

Choice (4)Response

a.

Light shows polarizing effects

b.

Light travels in waves

c.

Light can be diffracted

d.

Light wave undergo reflection

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