AIIMS (All India Institute of Medical Sciences) Physics: Questions 414 - 418 of 500

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Question number: 414

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

A water drop of mass is introduced between two plates with separation Calculate the force of attraction between the plates.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 415

» Center of Mass » Centre of Mass of a Two-Particle System

MCQ▾

Question

Four particles of masses 2 kg, 2 kg, 4 kg and 4 kg are placed at the corners of a square of side 10 cm as shown in figure. So, the position vector of centre of mass of the system is –

Four particles placed at the corners of a square

Four Particles Placed at the Corners of a Square

In figure four particles of masses 2 kg, 2kg, 4 kg and 4kg are placed at the corners of a square of side 10 cm are shown.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 416

» Magnetic Effects of Current and Magnetism » Cyclotron

MCQ▾

Question

The cyclotron frequency of an electron gyrating in a magnetic field of 2 T is approximately –

Choices

Choice (4) Response

a.

560 MHz

b.

56 GHz

c.

56 Hz

d.

5.6 GHz

Question number: 417

» Electrostatics » Capacitors

MCQ▾

Question

Minimum number of and 200 V capacitors used to make a combination of and 1000 V are:

Choices

Choice (4) Response

a.

10

b.

16

c.

7

d.

12

Question number: 418

» Communication System » Sky and Space Wave Propagation

MCQ▾

Question

In short wave communication waves of which of the following frequencies will be reflected back by the ionosphere layer having electron density 108 per m3?

Choices

Choice (4) Response

a.

9 KHz

b.

90 KHz

c.

45 KHz

d.

4.5 KHz

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