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Asked: January 1, 2021In: Class 10 Science

Assertion (A): Some persons have the difficulty to see the objects in dim light during night. Reason (R): Cones respond less to the illumination.

NCERT Solutions for Class 10 Science Chapter 11 Important Board Questions Human Eye and Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions Questions No: 8

Physics Question

Asked: January 1, 2021In: Class 10 Science

As light rays pass from air into glass prism are they refracted towards or away from the normal?

NCERT Solutions for Class 10 Science Chapter 11 Important Board Questions Human Eye and Colourful World NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions Questions No: 7

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Asked: January 1, 2021In: Class 10 Science

(a) Define 1 dioptre of power. Find the focal length of a lens of power -2.0 D. (b) Why does a lemon kept in water in a glass tumbler appear to be bigger then actual size.

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: 4

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Asked: January 1, 2021In: Class 10 Science

Statements 1: Wood is biomass. Statements 2: It produce lot of smoke.

NCERT Solutions for Class 10 Science Chapter 14 Important Board Questions Sources of Energy NCERT Books for Session 2022-2023 CBSE Board and UP Board Very Short Questions Questions No: 18

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Asked: January 1, 2021In: Class 10 Science

“A lens can form a magnified erect image as well as magnified inverted image of anobject placed in front of it”. Same the nature of this lens and draw ray diagrams to justify the above statement. Mark the position of O, F and 2F in the diagram.

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: 11

Assertion (A): Some persons have the difficulty to see the objects in dim light during night. Reason (R): Cones respond less to the illumination.

As light rays pass from air into glass prism are they refracted towards or away from the normal?

(a) Define 1 dioptre of power. Find the focal length of a lens of power -2.0 D. (b) Why does a lemon kept in water in a glass tumbler appear to be bigger then actual size.

Statements 1: Wood is biomass. Statements 2: It produce lot of smoke.

“A lens can form a magnified erect image as well as magnified inverted image of anobject placed in front of it”. Same the nature of this lens and draw ray diagrams to justify the above statement. Mark the position of O, F and 2F in the diagram.

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