Question

HI CUTIES❤️❤️❤️❤️
PLEASE TELL THE SIGN CONVENTIONS OF SPHERICAL MIRROR AND LENSES....​

Answer 1

Spherical Mirror:-

• The sign convention in a spherical mirror is taken with respect to the incident ray.
• If the object is placed in the direction of incident ray, it's taken as positive distance and if in opposite directions, then taken as negative distance.
• Same apllies for the image and focal length.
• Also, the mirror formula is given by $\sf{\dfrac{1}{u}+\dfrac{1}{v}=\dfrac{1}{f}}$ , where u = object distance, v = image distance and f = focal length.

Spherical Lens:-

• The sign convention in spherical lens is taken with respect yo the optical centre.
• The optical centre is taken as origin .
• Objects on the right side of optical centre is taken as positive distance and on left side as negative distance.
• Same applies for the image distance and focal length.
• We can also take sign convention with references to the incident ray as we took in case of spherical mirrors.
• Also, the lens formula is given by $\sf{\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}}$ , where u = object distance, v = image distance and f = focal length.

Answer 2

Explanation:

Spherical Mirror:-

The sign convention in a spherical mirror is taken with respect to the incident ray.

If the object is placed in the direction of incident ray, it's taken as positive distance and if in opposite directions, then taken as negative distance.

Same apllies for the image and focal length.

Also, the mirror formula is given by \sf{\dfrac{1}{u}+\dfrac{1}{v}=\dfrac{1}{f}}

u

1

+

v

1

=

f

1

, where u = object distance, v = image distance and f = focal length.

Spherical Lens:-

The sign convention in spherical lens is taken with respect yo the optical centre.

The optical centre is taken as origin .

Objects on the right side of optical centre is taken as positive distance and on left side as negative distance.

Same applies for the image distance and focal length.

We can also take sign convention with references to the incident ray as we took in case of spherical mirrors.

Also, the lens formula is given by \sf{\dfrac{1}{v}-\dfrac{1}{u}=\dfrac{1}{f}}

v

1

−

u

1

=

f

1

, where u = object distance, v = image distance and f = focal length.

Oye kaha bhatak gyi hai?