Question

please answer me I urgently want​

Answer 1

Answer:

i seriously don't know

Answer 2

Answer:

21..1/v+1/u=1/f mirror formula

symbols used v image distance

u object distance

f focal length

23.potential difference across the ends of the conductor is directly proportional to current flowing through it at constant temperature

25.olfactory indicator s are those whose smell changes in acidic or basic media ex vanilla clove

I know all answers but unable to type all answers