Question Detail

Thomas Alva Edison invented

Cinema
Cine Camera
Computer
Cinematograph

Answer: Option D

Explanation:

Thomas Alva Edison of USA invented Cinematograph in 1891,

Cinema was invented by A.L. and J.L. Lumiere of France in 1895,

Cine Camera was invented by Friese-Greene of Britain in 1889,

Computer was invented by Charles Babbage of Britain in 1834, he is also known as Father of Computer.

1. Light year is a unit of

Time
Light
Distance
Intensity of light

Answer: Option C

2. What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it ?

Elasticity
Strain
Elastic Limit
Stress

Answer: Option C

3. Force of attraction between the molecules of different substances is called

Surface tension
Cohensive force
Adhesive force
None of above

Answer: Option C

Explanation:

Cohensive force - Force of attraction between the molecules of same substance is called Cohensive force.

4. Alfred Nobel invented

X ray
Diesel Engine
Dynamite
Dynamo

Answer: Option C

Explanation:

Alfred Nobel if Sweden invented Dynamite in 1867,

X ray was invented by Wilhelm Roentgen of Germany in 1895,

Diesel Engine was invented by Rudolf Diesel of Germany 1892,

Dynamo was invented by Michael Faraday of England in 1831.