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  1. The maximum wavelength of radiations emitted at 900K is 4 µm. What will be the maximum
  2. A body initially at rest is moving with uniform acceleration a m/s²
  3. A 200 W sodium street lamp emits yellow light of wavelength 0.6 µm
  4. When a metallic surface is illuminated with radiation of wavelength λ,
  5. In Wheatstone bridge, three resistors P,Q and R are conncected in three arms