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Infrared radiations and Ultra Violet radiations:
What are infrared radiations and Ultra Violet radiations?
Ans: Infrared:
Wavelengths larger than visible light
2. Wavelengths range from 0.7mm to 100 mm
3. Used in physiotherapy
Ultra Violet:
1. Wavelengths shorter than visible light
2. Wavelengths range from 0.4 mm to 1 nm
3. Long exposure of body to UV rays causes skin diseases
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I think it is same as the apex angle of the prism or the angle of the prism. since it decides the angle of deviation as i+e=D+A(angle of the prism),D=deviation.
what will happen if gravity becomes zero?is it possible in earth?
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Explain and write about sonar
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