PHYSICS ONE LINER SET 26

PHYSICS ONE LINER SET 26

1. What is the phenomenon of splitting white light into seven colours? Dispersion
 
2. Critical angle is minimum when a light ray passes which thing? Glass to air
 
3. What will be best colours for a Sun umbrella? White on top and black
on inside
 
4. A virtual image larger than the object can be formed by which mirror? Concave mirror
 
5. Which substance is a bad conductor of electricity but a good conductor of heat? Mica
 
6. For an astronaut in a space ship, how does the sky appear? Black
 
7. What do we use in SONAR? Ultrasonic waves
 
8. A body has a mass of 6 kg on the Earth; when measured on the Moon, what
would be its mas?
6 kg
 
9. What is an example of emulsion? Milk
 
10. What is the cause of Exposure of rock to the changes of temperature? Mechanical weathering