Question # 1

The string of a simple pendulum should be:

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Heavy

Extensible

In-extensible

None of these

Work has the dimensions as that of

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Torque

Angular momentum

Linear momentum

Power

Longitudinal waves are also called:

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Congressional waves

Transverse waves

Radio waves

None of them

A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`

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Minimum work

Maximum work

Zero work

Negative work

The internal energy of a system does not depend upon the

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initial state of the system

final state of the system

path

none of them

A prism splits a beam of white light into seven component colors. This is so because

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Phase of different colors is different

Amplitude of different colors is different

Wavelength of different colors is different

Velocity of different colors is different

Lenz's law is the consequence of

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Mass

Energy conservation

Momentum conservation

Charge

Alfa , beta and gamma rays are emitted from a radio-active substance

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spontaneously

when it is heated

when it is exposed to light

When it interacts with the other particle

Circular motion is an example of motion in:

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One dimension

Two dimensions

Three dimensions

None of these

When the object lies between F and 2F, the image formed by is formed at:

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Real

Virtual

Diminished

Erect

CT scanning is the abbreviated name of

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Computed Technology

Computed Technique

Computed Technology

Computerized Technique

The electric potential at the surface of an atomic nucleus (Z = 50) of radius 9.0 x 10^-15 m is

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9 x 10⁵ V

9 V

8 x 10⁶ V

80 V

A chocolate cookie is a circular disk of diameter 8.5 ± 0.02 cm and thicknes 0.050 ± 0.005 cm the average volume in cm³ is

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2.83 ± 0.3

2.38 ± 0.27

11.35 ± 1.2

9.31 ± 1.12

If there were no intermolecular forces between gas molecules, the pressure due to a given sample a gas will be

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Increased

Decreased

Unchanged

None of these

SI unit of water equivalent of electrons is

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Kg

Kg²

Kg³

Kg¹

In YDS experiment, if the distance between the slits and also the distance between slits and screen is doubled, the fringe width:

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Becomes doubled

Becomes 4 times

Is halved

Remains the same

Selenium is an

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Insulator

Conductor

Semiconductor

Photo conductor

The maximum and minimum magnitudes of the resultant of two given vectors are 17 units and 7 units respectively.If these two vectors are at right angles to each other.the magnitude of their resultant is

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14

16

18

13

Einsteins theory say that gravity

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Follows inverse square law

Donot follow the inverse square law

Very weakly follow inverse square law

None of these

The total linear momentum of an isolated system remains

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Constant

Variable

Zero

None of these

If drag force is given by F = krv what could be the SI units of k

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kgm²s^-1

kgm^-2s^-2

kgm^-1s^-1

kgms^-1

A wire of 100 mm length and 1 mm²surface area stretches 10 mm under a load of 60 N. A second wire of same material, with half the diameter of the first wire is stretched by the same load. What is the extension in the second wire?

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20 mm

30 mm

40 mm

50 mm

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