AIIMS (All India Institute of Medical Sciences) Physics: Questions 273 - 277 of 500

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Question number: 273

» Work, Energy and Power » Kinetic Energy

MCQ▾

Question

A bomb of mass 5.0 kg explodes in air into two pieces of masses 2.0 kg and 3.0 kg. The smaller mass goes at a speed ofEquation . The total energy imparted to the two fragments is –

Choices

Choice (4) Response

a.

36 kJ

b.

48 kJ

c.

12 kJ

d.

24 kJ

Question number: 274

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

If equation of a sound wave is Equation then its wavelength will be –

Choices

Choice (4) Response

a.

1 unit

b.

0.09 unit

c.

0.05 unit

d.

0.5 unit

Question number: 275

» Electronic Devices » Junction Transistor

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

In a transistor the base is made thin.

Reason (Ꭱ)

Thin base makes the transistor stable.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

Question number: 276

» Electrostatics » Electric Field

MCQ▾

Question

Two parallel large thin metal sheets have equal surface charge densities Equation of opposite signs. The electric field between these sheets is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 277

» Kinematics » Position-Time Graphs

MCQ▾

Question

The maximum range of a gun or horizontal range is 25 km. If g = 10 ms-2. The muzzle velocity of the shell must be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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