Experimental Skills (NEET Physics): Questions 64 - 66 of 66

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Question number: 64

» Experimental Skills » Focal Length

MCQ▾

Question

In an experiment to measure the focal length of a concave mirror, it was found that for an object distance of 0.45 m, the image distance come out to be 0.90 m. Determine the focal length.

Choices

Choice (4) Response

a.

(0.2 ± 0.02) m

b.

(0.1 ± 0.02) m

c.

(0.3 ± 0.01) m

d.

(0.3 ± 0.02) m

Question number: 65

» Experimental Skills » Potentiometer

MCQ▾

Question

Which of the following operations will not increase the sensitivity of a potentiometer?

Choices

Choice (4) Response

a.

Increase in the number of wires of the potentiometer.

b.

Reducing the potential gradient.

c.

Increasing the sensitivity of the galvanometer.

d.

Increasing the current through the potentiometer

Question number: 66

» Experimental Skills » Meter Bridge

MCQ▾

Question

A meter-bridge is based on the principle of

Choices

Choice (4) Response

a.

Wheatstone bridge

b.

Variation of resistance with temperature

c.

Galvanometer

d.

None of the above

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