Question # 1

A preset or trimmer can be a.

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Variable resistor

Variable capacitor

Variable inductor

All of these

How the small bulbs used for decoration purposes are connected.

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In parallel

In series

In mixed order

In vertical position

The term radius of gyration relates to.

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Moment of force

Moment of inertia

Law of gravitation

simple harmonic motion

The force of gravity between two objects does not depend upon the.

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Constant of gravitation

Separation

Product of their masses

Sum of their masses

If a force of 10 N makes an angle of 30 ^o with x-axis its component is given by

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1.866 N

8.66 N

0.89 N

0.866 N

What is the degree of magnetization of a material.

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Susceptibility

Ablitity

Retentivity

Capacity

Tuning fork is a source of.

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Heat

Energy

Light

Sound

Which of the following is a thermodynamic temperature scale.

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Celsius scale

Fahrenheit scale

Kelvin scale

Rankine scale

A force applied at centre of mass of a body

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Does not produce any torque

Produces torque

Produces acceleration

Produce couple

A body of mass 8 kg moves along a circle of radius 4 m with constant speed of 88 m s-1 The centripetal force on the body is.

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10 N

128 N

48 N

148 N

The SI unit of spring constant is identical with that of.

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Force

Pressure

Surface tension

Loudness

Triple point of water in Kelvin scale is

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0 K

100 K

273 .15 K

373.15 K

A mason of 9.8 N weight is climbing on a 20 m high ladder The P.E. of mason at the middle of the ladder is.

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98 J

196 J

960 .4 J

1920 .8 J

The pressure of a goas is directly proportion to

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Mean velocity of the molecules

Mean square velocity of the molecules

Root mean square velocity of the molecules

Instantaneous velocity of the molecules

Linear acceleration of a point moving in a circle of radius 30 cm with angular acceleration of 0.5 rad s-2 is

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1.5 cm s-2

2.5 cm s-2

10 cm s-1

15 cm s-2

Reversible alternation of the form of dimensions of a solid body under stress and strain is called.

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elastic limit

Plastic limit

elestic deformation

Plastic deformation

If a rope in a hand makes 10 oscillations after every 2 s. the frequency of the wave is.

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2 C s-1

5 C s-1

10 C s-1

20 C s-1

Which of the following phenomenon is caused by the different speeds of light in differed optical media.

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Reflection

Refraction

Diffraction

Total internal reflection

Which one is not a semiconductor.

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Go As

Ge

Sc

In

A mercury thermometer has

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Low conductivity and low thermal capacity

High conductivity and high thermal capacity

Low conductivity and high thermal capacity

High conductivity and high thermal capacity

Particle which can be added to the nucleus of an atom with changing its chemical properties are called.

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Electrons

Protons

Neutrons

Alpha particles

A resistor whose resistance decreases with increasing intensity is.

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Light dependent resistor

Thermistor

Thermocouple

Strain gauge

Impulse is equal to.

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F x t/2

\F x t /4

F x t

F x t /m

Generally, electrical resistivity of intrinsic semiconductors decreases with increasing.

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Pressure

Volume

Temperature

Density

A small and a large rain drops are falling thgouth all.

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Large drop falls faster

Both move with same velocity

Small drop falls faster

Small drop does not fall

Which both elements are good for nuclear fission.

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Thorium an uranium

Thorium and radium

Plutonium and uranium

Plutonium and throrium

Who wrote books on sound and music.

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Galileo

Alkundi

Alberuni

Ibn al Haithem

The strength of photo electric current depends upon.

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Intensity of incident light

Frequency of incident light

Angle of incident light

Distance between anode and cathode

What is the quantitative description of the effect of radiation on the living tissue.

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Radiation dosimetry

Radioactive dating

Telemetry

Dosage

Angular acceleration is produced due to

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Centripetal force

Torque

Force

Mass

According to Huygen's principle

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Light bends round corners

Light travels in a straight line

All points on primary wave front are considered centre of distances

Light has wave nature

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