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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

Poll

Divit malik

Asked: October 20, 2020In: Class 10

Which one of the following materials cannot be used to make a lens?

NCERT Solution for Class 10 Science Chapter 10 Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-185 Questions No-2

Poll

Divit malik

Asked: October 20, 2020In: Class 10

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

NCERT Solution for Class 10 Science Chapter 10 Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Exercises Questions Page No-185 Questions No-3

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.

Which one of the following materials cannot be used to make a lens?

Where should an object be placed in front of a convex lens to get a real image of the size of the object?

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