Physics, asked by SuhailAbdulSathar, 4 months ago

Both a spherical mirror and a thin spherical lens have a focal length of (+) 20 cm. What type of mirror and lens are these?​

Answers

Answered by XxItzAnvayaXx
3

ANSWER:-

convex mirror and convex lens

EXPLANATION:-

this is because in convex lens an mirror focal length is on the right side

hence both a spherical mirror and a thin spherical lens have a focal length of (+) 20 cm

⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔ ⇔

THINGS TO KNOW:-

  • In a concave mirror, when the distance of the object is less than the focal length, the magnification will be greater than one. When the distance of the object is greater than the focal length, then the magnification is less than one.
  • in concave mirror u and f both are always '-'ve. as they are on the left side of the mirror
  • (height of object) is always '+'ve and
  • if  is '-'ve means the image is formed bottom of principal axis also image will be real and inverted and if  is '+'ve it means that image is virtual and erect.

Answered by joy1990
0

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