PHYSICS

 

1. Supersonic plane fly with the speed
A. less than the speed of sound
B. of sound
C. greater than the speed of sound
D. of light

2. Mach number is used in connection with the speed of
A. sound
B. aircraft
C. spacecraft
D. ships

3. On a stationary sail boat, air is blown from a fan attached to the boat. The boat
A. moves in opposite direction in which the air is blown
B. does not move
C. moves in the same direction in which air blows
D. spins around

4. Rainbow is due to
A. absorption of sunlight in minute water droplets
B. diffusion of sunlight through water droplets
C. ionisation of water deposits
D. refraction and reflection of sunlight by water droplets

5. Stars which appear single to the naked eye but are double when seen through a telescope are
A. novas and supernovas
B. binaries
C. asteroids
D. quasars

6. ML2T-2 is the dimensional formula for
A. moment of inertia
B. pressure
C. elasticity
D. couple acting on a body

ANSWERS:
1. Answer: Option C
2. Answer: Option B
3. Answer: Option B
4. Answer: Option D
5. Answer: Option B
6. Answer: Option D

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Milan Tomic

Hi. I’m Designer of Blog Magic. I’m CEO/Founder of ThemeXpose. I’m Creative Art Director, Web Designer, UI/UX Designer, Interaction Designer, Industrial Designer, Web Developer, Business Enthusiast, StartUp Enthusiast, Speaker, Writer and Photographer. Inspired to make things looks better.

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