Gurushala

Nikku

Posted 4 year ago

Nikku

Report

At what distance from a screen will a 27 Cd lamp provide the same illumination as a 75 Cd lamp 15 m from the screen ?
A) 9 m
B) 6 m
C) 3 m
D) 1 m

2 Answer(s)

PREETI SHARMA

Posted 4 year ago PREETI SHARMA

Report

Seema Kumari

Posted 4 year ago Seema Kumari

The distance at which the 27 Cd lamp produces same illumination as 75 Cd lamp at 15m is equal to 9 m.

Report

<span style="box-sizing: border-box; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-size: 14px; text-size-adjust: 100%; vertical-align: baseline; background: #ffffff; font-weight: bold; color: #666666; font-family: 'Open Sans', Arial, sans-serif;">At what distance from a screen will a 27 Cd lamp provide the same illumination as a 75 Cd lamp 15 m from the screen ? A) 9 m B) 6 m C) 3 m D) 1 m&nbsp;

Attach File