BITSAT Physics: Questions 22 - 27 of 158

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Question number: 22

» Physics and Measurement » Technology and Society

MCQ▾

Question

The discoverer of loudness and intensity of sound is –

Choices

Choice (4) Response
a.

Newton

b.

Edison

c.

Laplace

d.

Bell

Question number: 23

» Current Electricity » Electric Current

MCQ▾

Question

When the key K is pressed at time t=0 , then which of the following statement about the current I in the resistor AB of the given circuit is true?

Circuit diagram of two resistors and a capacitor

Circuit Diagram of Two Resistors and a Capacitor

In figure a circuit diagram of two resistors and a capacitor is shown.

Choices

Choice (4) Response
a.

I oscillates between 1mA and 2mA

b.

I=1mA at all t

c.

At t=0,I=2mA and with time it goes to 1mA

d.

I=2mA and at all t .

Question number: 24

» Kinematics » Scalars and Vectors » Scalar and Vector Products

MCQ▾

Question

If vector A and B has angle θ between them, then vector product is –

Choices

Choice (4) Response
a.

ABcosθ

b.

AB

c.

A×B×cosθ

d.

ABsinθ

Question number: 25

» Physics and Measurement » Errors in Measurement

MCQ▾

Question

Which of the following cannot be resultant of 5 and 10?

Choices

Choice (4) Response
a.

5

b.

8

c.

2

d.

7

Question number: 26

» Oscillations and Waves » Longitudinal and Transverse Waves

MCQ▾

Question

Light waves are transverse, because they –

Choices

Choice (4) Response
a.

Are not polarized

b.

Reflect

c.

Refract

d.

Are polarized

Question number: 27

» Electromagnetic Induction & Alternating Currents » Peak and RMS Value of AC

MCQ▾

Question

An electric lamp is connected to 220V , 50Hz supply. The peak voltage is –

Choices

Choice (4) Response
a.

210V

b.

320V

c.

311V

d.

211V

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