A light year is a unit of ?

A. Time
B. Energy
C. distance
D. Mass

Related Mcqs:

SI unit of light is _________ ?
A. watt
B. Pascal
C. Candela
D. Joule

Submitted by: Shahbaz Jiskani
1 light year = ?
A. 9.5×10⁶ km
B. 9.5×10⁹ km
C. 9.5×10¹² km
D. 9.5×10¹⁸ km
The unit of torque in International system of unit is _________?
A. Newton
B. Newton-Meter
C. Kilogram
D. Meter

Submitted by: Rashid Mehmood
Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________.
A. Mass of vertical column of atmospheric gases
B. Mass of horizontal column of atmospheric gases
C. Weight of vertical column of atmospheric gases
D. Mass of vertical and weight of horizontal of atmospheric gases

Submitted by: Muhammad Abdullah
What are the primary colors of Light?
A. White, Black, Blue
B. Red, Yellow, Blue
C. Red, Orange, Blue
D. Red, Green, Blue
The speed of light with the rise in the temperature of the medium____________?
A. Decrease
B. Increase
C. Remain the same
D. First decrease then increase

Submitted by: WIQAR AHMAD
Which one of the following wavelengths of light is most effective in photosynthesis?
A. Blue
B. Green
C. Orange
D. Yellow

Submitted by: Malik Asghar Hussain
The process of splitting water molecules in the presence of light energy is called_________?
A. Electrolysis
B. Photolysis
C. Radiolysis
D. Thermolysis

Submitted by: Malik Asghar Hussain
Which of the following is mainly used for light patrol engines ?
A. Kerosene oil
B. Paraffin oil
C. Heavy Fuel oil
D. Gasoline

Submitted by: Faheem Zaman Dhaunroo
Recently, scientists observed the merger of giant ‘blackholes’ billions of light-years away from the Earth. What is the significance of this observation?
A. ‘Higgs boson particles’ were detected.
B. Gravitational waves’ were detected.
C. Possibility of inter-galactic space travel through ‘wormhole’ was confirmed.
D. It enabled the scientists to understand ‘singularity’.

Submitted by: Abid Hussain