Tiwari Academy Discussion

Aakav

Asked: December 27, 2020In: Class 10 Science

Fill in the blanks: Speed of light is……….. .

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: iv

Aakav

Asked: December 26, 2020In: Class 10 Science

Fill in the blanks: The focal length of a spherical mirror is equal to……….. Its radius of curvature.

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: iii

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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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Asked: December 26, 2020In: Class 10 Science

Refractive indices of medium A, B and C are 1.3, 1.5 and 1.4 respectively. In which of the following the speed of light well be the. (a) Fastest (b) slowest 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: 1

Aakav

Asked: December 26, 2020In: Class 10 Science

Fill in the blanks: Light rays always travels in…………

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: v

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Asked: December 25, 2020In: Class 10 Science

Assertion (A): The shaving mirrors are convex mirrors. Reason (R): Convex mirror always forms a virtual image.

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: 16

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Asked: December 25, 2020In: Class 10 Science

Assertion (A): The bottom of a tank or pond, filled with water appears to be raised. Reason (R): The apparent depth of the tank is given by 1/n times the original depth.

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: 15

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Asked: December 25, 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 25, 2020In: Class 10 Science

The radius of curvature of a mirror is 20cm the focal length is-

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: 10

Fill in the blanks: Speed of light is……….. .

Fill in the blanks: The focal length of a spherical mirror is equal to……….. Its radius of curvature.

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.

Refractive indices of medium A, B and C are 1.3, 1.5 and 1.4 respectively. In which of the following the speed of light well be the. (a) Fastest (b) slowest and why?

Fill in the blanks: Light rays always travels in…………

Assertion (A): The shaving mirrors are convex mirrors. Reason (R): Convex mirror always forms a virtual image.

Assertion (A): The bottom of a tank or pond, filled with water appears to be raised. Reason (R): The apparent depth of the tank is given by 1/n times the original depth.

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.

The radius of curvature of a mirror is 20cm the focal length is-

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