Practice OPTICAL INSTRUMENTS - 9.7 | 9. RAY OPTICS AND OPTICAL INSTRUMENTS | CBSE 12 Physics Part 2
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the purpose of a microscope?

πŸ’‘ Hint: Think about smaller objects like cells.

Question 2

Easy

Name two types of optical instruments.

πŸ’‘ Hint: One is for small objects, the other for distant objects.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does a microscope do?

  • Magnifies small images
  • Magnifies distant stars
  • Changes colors of objects

πŸ’‘ Hint: Think about what we use to look at tiny things.

Question 2

True or False: A telescope is used for observing small objects.

  • True
  • False

πŸ’‘ Hint: Consider the purpose of telescopes.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A microscope has a focal length of 2 cm and is used to view an object placed 1.5 cm away. Calculate the magnification and describe the image formed.

πŸ’‘ Hint: Remember to use the magnification formula.

Question 2

Consider a telescope with an objective of 100 cm focal length and an eyepiece of 5 cm. What is the total magnifying power when the image is formed at infinity?

πŸ’‘ Hint: Use the formula to calculate based on focal lengths.

Challenge and get performance evaluation