Tiwari Academy Discussion

Asked: December 26, 2020In: Class 10 Science

What is the significance of tropic movement in plants? Explain any two types of tropic movements?

NCERT Solutions for Class 10 Science Chapter 7 Important Board Questions Control and Coordination NCERT Books for Session 2022-2023 CBSE Board and UP Board Short Questions Questions No: 10

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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

Biology Sir

Asked: December 26, 2020In: Class 10 Science

(a) What are dominant and recessive traits? (b) Is it possible that a trait is inherited but may not be expressed in the next generation? Give a suitable example to justify this statement.

NCERT Solutions for Class 10 Science Chapter 9 Important Board Questions Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Long Questions: Questions No: 5

Biology Sir

Asked: December 26, 2020In: Class 10 Science

What is speciation. List the factors responsible for speciation and mention how they could lead to the rise of a new species.

NCERT Solutions for Class 10 Science Chapter 9 Important Board Questions Heredity and Evolution NCERT Books for Session 2022-2023 CBSE Board and UP Board Long Questions: Questions No: 4

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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

What is the significance of tropic movement in plants? Explain any two types of tropic movements?

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…………

(a) What are dominant and recessive traits? (b) Is it possible that a trait is inherited but may not be expressed in the next generation? Give a suitable example to justify this statement.

What is speciation. List the factors responsible for speciation and mention how they could lead to the rise of a new species.

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.

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