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Q.

It is given that  P, C and Q represent radiation pressure, speed of light and radiation energy striking a unit area per second respectively. Determine the values of non-zero integers x, y and z such that the quantity PxQyCz is dimensionless.

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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

Substituting the dimension of given quantities in the relation provided by the problemML−1T−2xMT−2yLT−1z=[MLT]0Comparing the power of M, L, T in both L.H.S and R.H.S,we getx+y=0…...(i) −x+z=0…(ii)−2x−2y−z=0…(iii)After solving the above equationswe getx=1;y=−1;z=1
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