Q.

The ratio of SI units to CGS unit of energy is:


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a

106

b

105

c

107

d

10-7 

answer is C.

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Detailed Solution

The ratio of SI units to CGS unit of energy is 107.
The unit of energy is ML2T-2. Mass in gram, length in centimeter, and time in second in CGS units. where in SI units, mass in kilo gram, length in meter, and time in second.
As a result, the SI/CGS ratio = Kg m2 s-2/ gcm2 s-2 
= 1000g.1002cm2s-2/ gcm2s-2
= 107.
 
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