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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
Conservative Force : A force is told conservative when the work completed by the force in moving a particle from an instance to another instance is independent of the path followed
Length contraction
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Ultra violet Waves: The wavelength of ultra violet wave from 380mm down to 60nm.
the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constant is this stored energy one forth its initial value
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Which Path Requires the Most Energy This condition that can be simulated through use of a easy physics lab in that a force is applied to raise a cart up an incline at stable sp
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