TECHNOLOGY QUIZ

The unit of intensity of electric field is

N/c

Volt

J/c

N/m

TRUE ANSWER : ?
YOUR ANSWER : ?

Sun's heat reaches us by

Conduction

Radiation

Reflection

Convection

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of the following is a non-dimensional quantity?

Strain

Plank's constant

Gas constant

Co-efficient of viscocity

TRUE ANSWER : ?
YOUR ANSWER : ?

Hot springs are heated geothermally by underlying

Mitula

Magma

None of these

Water

TRUE ANSWER : ?
YOUR ANSWER : ?

The redness in atmosphere at Sunrise and Sunset is due to :

Reflection of light

Refraction of light

Scattering of light

Dispersion of light

TRUE ANSWER : ?
YOUR ANSWER : ?

During hot weather, the fan produces a feeling of comfort. This is because

Fan cools the air

Fan supplies cool air

Conductivity of air increases

Our perspiration eva-porates rapidly

TRUE ANSWER : ?
YOUR ANSWER : ?

The reason for a swimming pool to appear less deep than the actual depth is

Reflection

Refraction

Light scattering

Interference

TRUE ANSWER : ?
YOUR ANSWER : ?

For photoelectric effect to take place, the metal used as the cathode should have ________

Low work function

Low resistance

High melting point

Low melting point

TRUE ANSWER : ?
YOUR ANSWER : ?

According to special theory of relativity the mass of a particle

Decreases with decrease in velocity.

Increases with increase in velocity with respect to an observer.

Is independent of its velocity.

Decreases with increase in velocity.

TRUE ANSWER : ?
YOUR ANSWER : ?

In the electrical circuit of a house, the fuse acts as

A step down device

A safety device

A load

A thermopile

TRUE ANSWER : ?
YOUR ANSWER : ?

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