An optical instrument which is used measure the properties of visible light is called?

A. Microscope
B. Telescope
C. Spectroscope
D. Oscilloscope

Fog is an example of _________?

A. Gas in gas
B. Gas in liquid
C. Liquid in gas
D. Liquid in liquid

Smoke is an solution of _________?

A. Solid in solid
B. Solid in liquid
C. Solid in gas
D. Gas in gas

Blood sugar is measured in:

A. Mmhg
B. Mg/deciliter
C. Ppm
D. Gram/liter

The ‘Solar Corona’ mainly consists of?

A. Gases
B. Ice
C. Molten lava
D. Cosmic rays

Natural Radioactivity was discovered by Becquerel in ____________?

A. 1766
B. 1896
C. 1935
D. 2001

A light year is a unit of ?

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

The color of a sedimentary rock is often mostly determined by___________?

A. Zinc
B. Iron
C. Calcium
D. None of these

Pregnancy time period of “mice” is ___________?

A. 2 weeks
B. 2.5 weeks
C. 3 weeks
D. 4 weeks

Which planet looks reddish in the night sky ?

A. Jupiter
B. Saturn
C. Mars
D. Mercury