Question # 1

Food rich in proteins is:

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potato

grapes

vegetables

bread

Sound travel faster in

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CO2

H2

O2

He

One complete round trip of a body is called

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Displacement

Time period

Vibration

Frequency

The lower reading of blood pressure is called.

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Systolic pressure

Diastolic pressure

Normal pressure

Non normal pressure

The frictional force is

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Conservative force

Non conservative force

Electric force

Magnetic force

Two quantities involved in work are

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Force and speed

Force and velocity

Force and displacement

Force and acceleration

The frequency of waves produced in microwave oven is

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1435 Hz

2450 MHz

1860 MHz

2850 Hz

The terminal velocity of a droplet falling down under gravity is directly proportional to the square of

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Its density

Its radius

Its viscosity

Its elasticity

Young in 1801 performed experiment for the first time about

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Interference

Diffraction

Polarization

Particle nature of light

In Michelson's experiment the relation used to find the speed of light is

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16 fc

1/16 fd

16 fd

16/fd

In rotational motion the analogous of mass is

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Angular acceleration

Torque

Moment of inertia

Angular momentum

When the rocket moves away from the earth, the work against gravity

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Remains constant

Varies directly with distance

Varies inversely with distance

Varies inversely with square of distance

A bat finding its correct location by sending

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Matter waves

Ultrasonic waves

Infrasonic waves

electromagnetic waves

The speed of sound in air does not depend upon

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Temperature

Pressure

Density

Medium

According to Huygen's principle the points on primary wave front can be considered as

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Secondary wavelets

Ray of light

Source of light

None of these

_______ is bio fuel

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Water

Petrol

Ethanol

Oil

The device used to study the spectra from different sources of light is

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Telescope

Optical fibre

Spectrometer

Microscope

Which of the following is a set of supplementary units

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Radian and kilogram

Radian and Steradian

Steradian and time

Mole and radian

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