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Questions  

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 

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

detailed solution

Correct option is B

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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