Question # 1

The angular frequency time period and frequency of a simple pendulum depends only on the.

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Mass and amplitude

Mass and gravitational acceleration

Amplitude and frequency

Length and gravitational acceleration.

For the angular momentum of a system to remains constant, the external torque should be

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small

Large

Neither small nor large

zero

If the cross sectional area of the pipe decreases the speed of the fluid increase according to.

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Venturi relation

Bernoulli's equation

Equation of continuity

Torriculli's theroem

A device used to measure the strain of an object and it is a type of resistor that changes value with applied strain is a

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thermistor

Strain gauge

Thermocouple

Potentiometer

As a result of modulation, the resultant wave is called.

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Carrier wave

Modulated carrier wave

Matter wave

Energetic carrier wave

The most suitable material for moderator in a nuclear reactor is.

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B

Cd

D2O

Uranium

Image formed by a concave lens is.

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Real

Magnified

Virtual

Real and magnified

halls fall faster than rain drops due to their

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Grater size

Greater mass

Greater area

Structure

In which of the following the speed of sound will be maximum under similar conditions.

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N2

O2

CO2

H2

Which of the following are electromagnetic waves.

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Alpha particles

Beta particles

Gama rays

Water waves

In which of the following eddy current is not used

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Induction furnace

Automobile speedometer

Electromagnetic damping

X- rays diffraction

Which of the following is not an electromagnetic wave.

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game rays

Ultraviolet rays

Ultrasonic waves

Microwaves

A piece of weighed wood just floats in water when placed in alcohol will

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Float lower

Float higher

Stay as before

Sink

A double convex an bubble in water will behave as.

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Plane slab

Concave mirror

Convex lens

Concave lens

Which eye defect can be rectified by using diverging lens.

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Near sightedness

Far sightedness

presbyopal

Astigmatism

Capacitive reactance is measured in

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Henrys

Ohms

mhos

electron volts

Any transparent medium bounded by one or two spherical surfaces is called

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Prism

Lens

Plane mirror

Grating

The 'x' in X-rays means

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Xenon

Explosion

x for unknown

X makes the spot

The base unit of temperature in SI is

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Fahrenheit

Celsius

Kelvin

Rnakine

A particle performs SHM of amplitude 0.020 and frequency 2.5 Hz. What is its maximum speed.

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0.050 m s-1

0.125 m s-1

0.314 m s-1

0.75 m s-1

Periodic motion is a motion.

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Under the influence of an elastic restoring force

That repeats it self in equal intervals of time

Back and forth over the same path

With constant acceleration

A body is equilibrium may not have

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Momentum

Velocity

acceleration

K.E.

A Spectrum of radiation in which the quantity being studied, such as frequency or energy takes on discrete values is called.

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Continuous spectra

Band spectra

Discrete spectra

Normal spectrum

What is term for tendency of a system to oscillate with larger amplitude at some frequencies than at others.

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Resonance

Impedance

Inductance

Capacitance

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

The source of geothermal energy is

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The fusion in the sun

the radioactive decay in the earths interior

the rotation of earth around the sun

The rotation of earth around its own axis

Which temperature is required for the fusion of two nuclides.

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10⁶ K

10⁷K

10⁸K

10 ⁹ K

If air is replaced by any other dielectric medium, the force between two charges.

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Decreases

Increases

Remain the same

Becomes infinity

The emf induced by the motion of a conductor across a magnetic field is called.

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Absolute potential

Motional emf

Induced emf

Terminal potnetial

the consumption of energy by a 60 watt bulb in 2 s is

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0.02 J

30 J

120 J

60 J

For an A.C. circuit the power factor is

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Always les than one

Always greater than one

Always equal to one

Absent

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