Physics

Q21

If electron in hydrogen atom jumps from lower to higher orbit then which quantity will decrease?

Q22

If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?

Q25

Temperature scales are based on_________________?

Q30

The minimum wavelength of X-rays produced at 2.0 kV is______________?

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