Q.
If P represents radiation pressure, C represents speed of light and Q represents radiation energy striking a unit area per second, then the 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
M0L0 T0 =PxQyCz = (M L-1 T-2) x(MT-3)y(LT-1)z x + y = 0 or x = -y -x +z = 0 or,x= z
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