BITSAT Physics: Questions 128 - 132 of 382

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Question number: 128

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

MCQ▾

Question

A resonance air column of length Equation resonates with a tuning fork of frequency Equation . The speed of the air is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 129

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

MCQ▾

Question

If the heat of Equation is added to a gaseous system, whose internal energy is Equation , then the amount of external work done is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 130

» Electronic Devices » Logic Gates (Or, and, NOT, NAND and NOR)

MCQ▾

Question

The logic behind NOR gate is that which gives –

Choices

Choice (4) Response

a.

Low output when both input are low

b.

High output when both inputs are low

c.

High output when both input are high

d.

All of the above

Question number: 131

» Current Electricity » Potential Difference and EMF of Cell

MCQ▾

Question

If the current through Equation resistor is Equation , then potential drop through Equation resistor is –

Circuit diagram of three resistors

Circuit Diagram of Three Resistors

In figure circuit diagram consists of three resistance is shown.

Choices

Choice (4) Response

a.

2.6 V

b.

4.8 V

c.

1.2 V

d.

9.6 V

Question number: 132

» Magnetic Effects of Current and Magnetism » Magnetic Moment

MCQ▾

Question

Two magnets each of magnetic moment Equation are placed so as to form a cross at right angle to each other. The magnetic moment of the system will be –

Choices

Choice (4) Response

a.

Equation

b.

M

c.

Equation

d.

0.5 M

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