Tiwari Academy Discussion

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

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Asked: December 30, 2020In: Class 10 Science

A thin converging lens forms a (i) Real magnified image. (ii) Virtual magnified image. (a) Write the positions of the objects in each case. (b) Draw labelled diagrams for each case.

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: 2

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Asked: December 30, 2020In: Class 10 Science

The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light in glass is 2 × 108 m/s, find the speed of light in water.

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: 12

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Asked: December 29, 2020In: Class 10 Science

Fill in the blanks: Image formed by a plane mirror is always……….. And…………

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 Multiple Choice Questions Questions No: 11 part: i

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Asked: December 29, 2020In: Class 10 Science

A ray travelling in water enters obliquely into glass. Does the light bend towards or away from the Normal and why?

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: 5

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Asked: December 29, 2020In: Class 10 Science

State the laws of refraction of light. Explain the term ‘absolute refractive index of a medium’ and write an expression to relate it with the speed of light in vacuum.

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 8

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Asked: December 29, 2020In: Class 10 Science

If the image formed by a spherical mirror for all positions of the object placed in front Of it is always erect and diminished, what type of mirror is it? Draw a labelled ray Diagram to support your answer.

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: 7

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Asked: December 28, 2020In: Class 10 Science

One half of a convex lens is covered with black paper. (a) Show the formation of image of an object placed at 2f, of such covered lens with the help of ray diagram. Mention the positions and nature of the image (b) Draw the ray diagram for same object at same position in front of the same lens, but now uncovered. Will there be any difference in image obtained in the two cases? Give reasons for your answers.

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: 1

Aakav

Asked: December 28, 2020In: Class 10 Science

Fill in the blanks: A spherical mirror, who’s reflecting surface is curved inwards, that is, Faces towards the centre of the sphere, is called a……….. .

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 Multiple Choice Questions Questions No: 11 part: ii

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Asked: December 28, 2020In: Class 10 Science

(a) What happens to a ray of light when it travels from one medium to another having equal refraction indices? (b) State the cause of refraction of light.

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

“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.

A thin converging lens forms a (i) Real magnified image. (ii) Virtual magnified image. (a) Write the positions of the objects in each case. (b) Draw labelled diagrams for each case.

The refractive indices of glass and water with respect to air are 3/2 and 4/3 respectively. If speed of light in glass is 2 × 108 m/s, find the speed of light in water.

Fill in the blanks: Image formed by a plane mirror is always……….. And…………

A ray travelling in water enters obliquely into glass. Does the light bend towards or away from the Normal and why?

State the laws of refraction of light. Explain the term ‘absolute refractive index of a medium’ and write an expression to relate it with the speed of light in vacuum.

If the image formed by a spherical mirror for all positions of the object placed in front Of it is always erect and diminished, what type of mirror is it? Draw a labelled ray Diagram to support your answer.

Fill in the blanks: A spherical mirror, who’s reflecting surface is curved inwards, that is, Faces towards the centre of the sphere, is called a……….. .

(a) What happens to a ray of light when it travels from one medium to another having equal refraction indices? (b) State the cause of refraction of light.

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