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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > About 5 percent of the power of a 100 W light bulb is converted to visible radiation. what is the average intensity of visible radiation a) at a distance of 1 m from the bulb ? b) at a distance of 10 m ? assume that the radition is emitted isotrophically and neglect reflection.

About 5 percent of the power of a 100 W light bulb is converted to visible radiation. what is the average intensity of visible radiation a) at a distance of 1 m from the bulb ? b) at a distance of 10 m ? assume that the radition is emitted isotrophically and neglect reflection.

and radio waves of wave length 500 m? What physical quantity is the same for X-rays of wave length 6800 A