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Asked: December 28, 2020In: Class 10 Science

(a) If the image formed by a mirror for all position of the object placed in front of it is always diminished, erect and virtual, state the type of the mirror and also draw a ray diagram to justify your answer. Write one use such mirrors are put to and why. (b) Define the radius of curvature of spherical mirror. Find the nature and focal length of a spherical mirror whose radius of curvature is +24 cm.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board 5 Marker Questions Questions No: 6

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Asked: December 27, 2020In: Class 10 Science

Define the principal focus of a concave mirror.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Answer in one word/one sentence. Questions No: 12 part: iv

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Asked: December 27, 2020In: Class 10 Science

A student obtains a blurred image of distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board Answer in one word/one sentence. Questions No: 14

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Asked: December 26, 2020In: Class 10 Science

Light enters from air to kerosene having a refractive index of 1.47. What is the speed of light in kerosene?

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marker Questions Questions No: 3

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Asked: December 26, 2020In: Class 10 Science

A compound lens is made up of two thin lenses having power + 12.5 D and -2.5 D. Find the focal length and power of the combination.

NCERT Solutions for Class 10 Science Chapter 10 Important Board Questions Light – Reflection and Refraction NCERT Books for Session 2022-2023 CBSE Board and UP Board 3 Marker Questions Questions No: 2

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Define the principal focus of a concave mirror.

A student obtains a blurred image of distant object on a screen using a convex lens. To obtain a distinct image on the screen he should move the lens.

Light enters from air to kerosene having a refractive index of 1.47. What is the speed of light in kerosene?

A compound lens is made up of two thin lenses having power + 12.5 D and -2.5 D. Find the focal length and power of the combination.

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