Question

1) In an electric generator the conversion of energy is from ________ to _________
2) A frequency of 5000hz is ________ to human ears
3) 100 deg Fahrenheit = _______ deg celcius
4) sound and light waves are types of _______
5) A train moves at a speed of 120 km/hr how long will it take to cover a distance of 15 km
6) A group of electric cell is also known as ________
7) which type of electromagnet is used in an electric bell
8) The time period of body is 10 sec what will be it frequency
9) Wave from of two different stringed instruments can be the same (True/ false)
10) sound can travel in ________
11) The symbol of wavelength is _________
12) Gas expands __________ than the liquid
13) Black surface are ________ of heat
14) water at _________ deg celcius vapours into steam
15) Red+Green = __________
16) cyan is a _______ colour
17) The speed of light is maximum in ________
18) sea breeze occurs during ________
19) solar cooker uses ________ energy of sun
20) We can feel the vibration of _________ when speaking
21) magnetic poles always exist in _________
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Answer 1

Answer:

1ans: mechanical to electrical

2ans most sensitive

3ans:relation between degree & farhnheit is

*C×9/5+32=farnheit

*C=(F-32)×5/9

C=100-32×5/9

*C=37.778degrees