(a) Candela
(b) Watt
(c) Lumen
(d) Lux
Answer:
Unit of solid angle is
(a) Steradian
(b) Radian-second
(c) Degree
(d) Radian
Answer:
Which of the following is not a vector quantity?
(a) Torque
(b) Displacement
(c) Speed
(d) Velocity
Answer:
When the milk is churned vigorously the cream from it is separated out due to
(a) Gravitational force
(b) Centripetal force
(c) Frictional force
(d) Centrifugal force
Answer:
The tendency of liquid drop to contract and occupy minimum area due to
(a) Density
(b) Viscosity
(c) Surface tension
(d) Vapour pressure
Answer:
With the rise of temperature, the surface tension of a liquid
(a) Remains unchanged
(b) Increases
(c) Decreases
(d) None of these
Answer:
Newton's first law is also called as
(a) Law of energy
(b) Law of momentum
(c) Law of moments
(d) Law of inertia
Answer:
Light year is a measurement of
(a) Speed of light
(b) Stellar distances
(c) Speed of earoplanes
(d) Speed of rockets
Answer:
SI init of heat is
(a) Kilo calorie
(b) Kelvin
(c) Calorie
(d) Joule
Answer:
Device used to measure very high temperature is
(a) Bolometer
(b) Calorimeter
(c) Pyrometer
(d) Thermometer
Answer: