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Two elements A and B with atomic numbers `Z_A` and `Z_B` are used to produce characteristic X-rays w
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Find the correct statement(s) about photoelectric effect.
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A particle starts moving from rest from a
fixed point in a fixed direction. The distance
`s` from
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The atomic number of cerium `(Ce)` is `58`. The
correct electronic configuration of `Ce^(3+)`ion is
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If the vertex of the conic `y^2 -4y =4x -4a`
always lies between the straight lines
`x + y = 3` an
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The equations of the lines through `(1, 1)` and making angles of `45^0` with the line `x + y = 0` a
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