om kishan

Trayi Goyal

Asked: October 20, 2020In: Class 10

The refractive index of diamond is 2.42. What is the meaning of this statement?

NCERT Solution for Class 10 Science Chapter 10 Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-176 Questions No-5

Divit malik

Asked: October 20, 2020In: Class 10

Define 1 dioptre of power of a lens.

NCERT Solution for Class 10 Science Chapter 10 Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-184 Questions No-1

Divit malik

Asked: October 20, 2020In: Class 10

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 front of the convex lens if the image is equal to the size of the object? Also, find the power of the lens.

NCERT Solution for Class 10 Science Chapter 10 Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-184 Questions No-2

Divit malik

Asked: October 20, 2020In: Class 10

Find the power of a concave lens of focal length 2 m.

NCERT Solution for Class 10 Science Chapter 10 Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Intext Questions Page No-184 Questions No-3

om kishan

The refractive index of diamond is 2.42. What is the meaning of this statement?

Define 1 dioptre of power of a lens.

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 front of the convex lens if the image is equal to the size of the object? Also, find the power of the lens.

Find the power of a concave lens of focal length 2 m.

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