Question 6 :

Light year is a measurement of

A). speed of aeroplanes
B). speed of light
C). Stellar distances
D). speed of rockets
Answer : Option C

Question 7 :

Very small time intervals are accurately measure by

A). White dwarfs
B). Quartz clocks
C). Atomic clocks
D). Pulsars
Answer : Option C

Question 8 :

One kilometre is equal to how many miles?

A). 0.84
B). 0.5
C). 1.6
D). 0.62
Answer : Option D

Question 9 :

kilohertz is a unit which measures

A). power used by a current of one ampere
B). electromagnetic radio wave frequencies
C). voltage
D). electric resistance
Answer : Option B

Question 10 :

One horse power is equal to

A). 746 watts
B). 748 watts
C). 756 watts
D). 736 watts
Answer : Option A