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Q.

If p represents radiation pressure, c represent speed of light and Q represents radiation energy striking a unit area per second, then non-zero integers x, y and z such that pxQycz is dimensionless are

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a

x=1, y=-1, z=1

b

x=-1, y=1, z=1

c

x=1, y=1, z=-1

d

x=1, y=1, z=1

answer is B.

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Detailed Solution

Since, pxQycz is dimensionless. Therefore,

ML-1 T-2xMT-3yLT-1z=M0 L0 T0

Only option (2) satisfies this expression.

So, x=1, y=-1, z=1

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