Question

please help me guys please​

Answer 1

Answer:

a. it is concave mirror

b. m = -v/u = -(-50)/u

= -1= 50/u

= u = -50

c. now we have v= -50 , u = -50

so by the mirror formula

1/f = 1/v-1/u

= -1/50 - (-1/50)

= -1/50 + 1/50

= - 1/ 25

so focal length is 25 cm

Answer 2

Answer:

the focal length is 25 cm is the answer