Tiwari Academy Discussion

Idika

Asked: November 24, 2020In: Class 7 Science

Explain how groundwater is recharged?

NCERT Solutions for Class 7 Science Chapter 16 Important NCERT Questions 7th Chapter 16 Water: A Precious Resource NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 2

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Gargi

Asked: November 24, 2020In: Class 7 Science

The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 13

Poll

Gargi

Asked: November 24, 2020In: Class 7 Science

David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 12

Poll

Gargi

Asked: November 24, 2020In: Class 7 Science

A virtual image larger than the object can be produced by a

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 11

Gargi

Asked: November 24, 2020In: Class 7 Science

Which type of lens forms always a virtual image?

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 10

Gargi

Asked: November 24, 2020In: Class 7 Science

Which type of mirror can form a real image?

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 9

Gargi

Asked: November 24, 2020In: Class 7 Science

Give one use each of a concave and a convex mirror.

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 8

Gargi

Asked: November 24, 2020In: Class 7 Science

State two differences between a convex and a concave lens.

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 7

Gargi

Asked: November 24, 2020In: Class 7 Science

What is a virtual image? Give one situation where a virtual image is formed.

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 6

Gargi

Asked: November 24, 2020In: Class 7 Science

Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.

NCERT Solutions for Class 7 Science Chapter 15 Important NCERT Questions 7th Chapter 15 Light NCERT Books for Session 2022-2023 CBSE Board and State Board Questions No: 5

Explain how groundwater is recharged?

The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be

David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be

A virtual image larger than the object can be produced by a

Which type of lens forms always a virtual image?

Which type of mirror can form a real image?

Give one use each of a concave and a convex mirror.

State two differences between a convex and a concave lens.

What is a virtual image? Give one situation where a virtual image is formed.

Find out the letters of English alphabet or any other language known to you in which the image formed in a plane mirror appears exactly like the letter itself. Discuss your findings.

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