1.

The solid angle subtended by the periphery of an area `1cm^(2)` at a point situtated symmetrically at a distance of 5 cm from the area isA. `2xx10^(-2)` steradianB. `4xx10^(-2)` steradianC. `6xx10^(-2)` steradianD. `8xx10^(-2)` steradian

Answer» Correct Answer - B
Solid angle `dOmega=(dA)/(r^(2))=(1cm^(2))/((5cm)^(2))`
`=4xx10^(-2)` Steradian


Discussion

No Comment Found

Related InterviewSolutions