AIIMS Physics: Questions 466 - 470 of 500

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Question number: 466

» Atoms and Nuclei » Nuclear Fission and Fusion

MCQ▾

Question

What amount of energy will be liberated in one kg fusion reaction? The mass defect in a nuclear fusion reaction is 0.03%.

Choices

Choice (4) Response
a.

3×1012J

b.

12×1012J

c.

0.3×1012J

d.

9×1012J

Question number: 467

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

Alternating voltage V=300sin(200πt) is applied across the resistance 0.3kΩ . The rms value of current is equal to –

Choices

Choice (4) Response
a.

0.5A

b.

0.7A

c.

1.0A

d.

0.3A

Question number: 468

» Magnetic Effects of Current and Magnetism » Magnet Oscillations

MCQ▾

Question

A compass needle oscillates 10 times per minute at a place where dip is 60° and 30 times per minute where the dip is 30° . Compare the total magnetic field of earth at two places.

Choices

Choice (4) Response
a.

33

b.

3

c.

3

d.

23

Question number: 469

» Rotational Motion » Conservation of Angular Momentum

Appeared in Year: 2005

MCQ▾

Question

Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momentum will be in the ratio – [AIPMT]

Choices

Choice (4) Response
a.

2:1

b.

1:2

c.

2:1

d.

1:2

Question number: 470

» Electromagnetic Induction & Alternating Currents » Alternating Currents

MCQ▾

Question

An alternative current is given as, I=3sin(30t) . The average value of current over a half – cycle –

Choices

Choice (4) Response
a.

π6

b.

3π

c.

π3

d.

6π

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