AIIMS Physics: Questions 66 - 69 of 500

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Question number: 66

» Magnetic Effects of Current and Magnetism » Magnetic Moment

Appeared in Year: 2005

MCQ▾

Question

The magnetic moment (µ) of a revolving electron around the nucleus varies with principal quantum number n as – [AIIMS]

Choices

Choice (4) Response

a.

μ1n

b.

μn

c.

μn2

d.

μ1n2

Question number: 67

» Electromagnetic Induction & Alternating Currents » Lenz's Law

Appeared in Year: 1982

MCQ▾

Question

As shown in the figure, a copper coil A and a wire are placed on the surface of the paper. A current of 1A flows in the wire in the directions as shown in the figure. If the magnitude of the current is raised to 2 A, the direction of the induced current in the coil [AIIMS, RPMT-88]

A copper coil A and a wire

A Copper Coil a and a Wire

Figure shows a copper coil A and a wire are placed on the surface of the paper.

Choices

Choice (4) Response

a.

No current will induced

b.

Clock wise

c.

Anti clock wise

d.

None of the above

Question number: 68

» Kinematics » Uniformly Accelerated Motion

Appeared in Year: 2005

MCQ▾

Question

A person is standing in an elevator. In which situation he finds his weight less –

[AIIMS]

Choices

Choice (4) Response

a.

when the elevator moves downward with constant acceleration

b.

when the elevator moves downward with uniform velocity

c.

when the elevator moves upward with constant acceleration

d.

when the elevator moves upward with uniform velocity

Question number: 69

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A body is thrown horizontally with a velocity 2gh from the top of a tower of height h. It strikes the level ground through the foot of the tower at a distance x from the tower. The value of x is

Choices

Choice (4) Response

a.

h2

b.

2h

c.

h

d.

34m

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