Question

its my doubt plz tell guyss Power ka formula gota hai p=1/f and lekin hum solve kiye to 100 q aya ​

Answer 1

Answer:

BECAUSE...... POWER NIKALNE KE LIYE F HAMESHA METRE MA LETE H.....

F IS GIVEN IN CM I. E. 25 CM

SO IT CAN BE WRITTEN AS 25/100

SO P=1/F

P=1/25/100

=100/25

=4D