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1. Solar eclipse occurs, when
Solar eclipse occurs, when moon comes between sun and earth.
2. Lunar eclipse occurs, at
Lunar eclipse occurs, at day of full moon.
3. A solid rod seems slight bent in the water due to
A solid rod seems slight bent in the water due to refraction.
4. Mirage is a example of
Mirage is occures due to total internal reflection of light in desert.
5. The colour of sky is blue due to
NA
6. Which type of mirror is used as 'back view mirror' in vehicle
NA
7. For shaving, we use
We use concave mirror in shaving for making large image.
8. In water, air bubble works as
NA
9. What is the unit of lens power?
NA
10. Which of the following colour has less wavelength?
Wavelength is inversely to refractive index.
11. Which of the following lens is used for hypermetropia?
NA
12. Which of the following has most conduction?
NA
13. A device, which converts an AC into DC is called
Rectifier is used as AC to DC converter.
14. What is the unit of voltage?
NA
15. An ideal voltmeter has resistance of
NA
16. The filament of iron press is made by
NA
17. An electric generator works on the principle of
NA
18. Who discovered the neutron?
NA
19. Who discovered the positron?
NA
20. Who discovered the electron?
NA
21. Atom bomb is based on the principle of
Nuclear fusion is process in which a heavy nuvleus decompose in two or more light nucleus.
22. The speed of light will be minimum while passing through
NA
23. The most suitable unit for expressing nuclear radius is
NA
24. Rain drops acquire spherical shape due to
NA
25. If a sound travels from air to water, the quantity that remain unchanged is
NA
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