The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.
True
False
Answer: Option B
Similar Questions :
1. Which instrument is used to measure altitudes in aircraft's ?
Audiometer
Ammeter
Altimeter
Anemometer
Answer: Option C
Explanation:
Ammeter - Measures strength of electric current.
Audiometer - Measures intensity of sound.
Anemometer - Measures force and velocity of wind and directions.
2. newton is used to measure
Speed
Volume
Force
Area
Answer: Option C
3. When a body is immersed partly or wholly in a liquid, there is an apparent loss in weight of the body which is equal to the weight of liquid displaced by the body.
True
False
Answer: Option A
Explanation:
TRUE, it is Archimedes Principle.
4. The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.
True
False
Answer: Option B
5. Which instrument is used to measure strength of direct current ?
Stroboscope
Streoscope
Tangent Galvanometer
Tachometer
Answer: Option C
Explanation:
Stroboscope - is used to view rapidly moving objects,
Streoscope - is used to view two dimensional pictures,
Tachometer - is used to determine rotational speed of a shaft (used in aeroplanes and motor boats).