By what percentage will the illumination of the lamp decrease if the current drops by 20%? 

(1) 46%

(2) 26% 

(3) 36% 

(4) 56%  

                                                  JEE-2024

Solution:                
By what percentage will the illumination of the lamp decrease if the current drops by 20%? (1) 46% (2) 26% (3) 36% (4) 56% JEE-2024

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