an object is placed at a distance of 20 CM in front of a convex mirror of radius of curvature is 30 centimetre find the position and the nature of the image
Answers
Hey Mate ❤
Your Answer -
Given :
Object distance, u = -20 cm
Object height, h = 5 cm
Radius of curvature, R = 30 cm
Focal length, f = R/2 = 15 cm
☑ Mirror Formula :
According to the mirror formula,
1/v + 1/u = 1/f
1/v = 1/f - 1/u
1/v = 1/15 - ( - 1/20 )
1/v = 1/15 + 1/20
1/v = (3+4)/60
1/v = 7/60
v = 8.57 cm
➡ The positive value of v indicates that the image is formed behind the mirror.
☑ Magnification :
m = - v/u = - ( 8.57/-20) = 0.428
➡ The positive value of magnification indicates that the image formed is virtual.
Now again,
m = h'/h { h' is image height }
h' = m × h
h' = 0.428 × 5 = 2.14 cm
➡ The positive value of h' is indicates that the image formed is erect.
☑ Hence, the image formed is erect, virtual, and smaller in size.
☑ Some most important question from this chapter -
➡ A concave Lens of focal length 15 cm forms an image of 10 cm from the Lens. how far is the object placed from the Lens?....
https://brainly.in/question/5910326
➡ A convex lens forms a real and inverted image of a needle at a distance of 50 cm from it where is the needle placed in f...
https://brainly.in/question/9687885
➡ A concave mirror produces three times magnified(enlarged) real image of an object placed at 10 cm in front of it . where...
https://brainly.in/question/1000254
Glad To Help :D
☑ If you like the answer than hit the like button n ho ske to follow up vi kr lena ❤