Which,phenomenon of light explains the following ? (i) A coin lying at the bottom, of a cylinder full of water seems to be raised. (ii) A stick partially dipped in water appears broken.
Because of reflection.
Because of refraction.
Because of interference.
Because of diffraction.
Name the substance produced in the blood to counteract the effect of infection or poison.
What causes land and sea breezes ?
The difference in the humidities of air above water and air aboveland.
The difference in the temperatures of air above water and air aboveland.
The difference in the pressures of air above water and air above land.
The difference in the specific heats of water and land,
Why the colour of the sky is blue ?
Because blue colour has shorter wavelength and is prominently scattered by water vapours and dust particles.
Because there are many blue gases in the sky.
Because sky scatters the light of the stars.
Because of certain nuclear reactions continuously taking place in, the sky.
Which of the following statements is true about air conditioning ?
Air is circulated at the rate of 25-72 feet per second.
Temperature lies between 75 degree F and 77 degree F.
Relative humidity is from 60 - 65 per cent.
All of these.
What is the use of radiator in a car ?
It radiates light.
It keeps the temperature of the engine down.
It makes the engine function.
It keeps the fuel consumption low.
What is life span of red blood cells ?
How many red blood cells are contained in one cubic millimetre of blood ?
What is the normal urine glucose level of an adult ?
How much salt is required by an average healthy man in one year ?
1. World Geography -Test-01
2. World Geography -Test-02
3. World Geography -Test-03
4. Geography of India -Test-01
5. Geography of India -Test-02
6. Geography of India -Test-03
7. Geography of India -Test-04
8. Geography of India -Test-05
9. History of India - Test - 01
10. History of India - Test - 02
11. History of India - Test - 03
12. History of India - Test - 04
13. History of India - Test - 05
14. History of India - Test - 06
15. History of India - Test - 07
101Home Makeover Ideas
How to Be Chill
River - City Quiz
Biggest Male Models of All Time
Tallest Dams In The World
Hoover Dam Arizona
Once known as Boulder Dam, the Hoover Dam is a concrete arch gravity dam in the Black Canyon of the Colorado River, on the border between the US states of Arizona and Nevada.