NEET Physics: Ray Optics — MCQ Test 2

Q6. A simple microscope with a focal length of \( 4 \, \text{cm} \) forms an image at \( 25 \, \text{cm} \). What is the magnification?

Q7. A prism of refracting angle \( 30^\circ \) and refractive index \( 1.6 \) produces what minimum deviation?

Q8. A ray of light passes from water (\( n = 1.33 \)) to air at an angle of incidence of \( 49^\circ \). What happens?

Q9. A glass slab (\( n = 1.5 \)) of thickness \( 6 \, \text{cm} \) is placed over a point. What is the apparent shift?

Q10. A simple microscope with a focal length of \( 6 \, \text{cm} \) forms an image at infinity. What is the magnification?

Q11. A prism of angle \( 45^\circ \) has a refractive index of \( 1.5 \). What is the angle of minimum deviation?

Q12. A compound microscope has an objective of focal length \( 2.5 \, \text{cm} \) and eyepiece of focal length \( 5 \, \text{cm} \) with a tube length of \( 20 \, \text{cm} \). What is the magnification at infinity?

Q13. A prism of angle \( 45^\circ \) has a refractive index of \( 1.6 \). What is the angle of minimum deviation?

Q14. Why can’t a concave mirror form an image at infinity when the object is placed at any finite distance?

Q15. A convex mirror of focal length \( 12 \, \text{cm} \) forms an image \( 6 \, \text{cm} \) behind the mirror. What is the object distance?

NEET Physics — Ray Optics

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1Question 1 of 15
Medium

Why does a plane mirror not produce magnification greater than unity?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Ray Optics. It contains 15 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Magnification, Telescope, Objective, Eyepiece, Magnifying, and Apparent.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. Why does a plane mirror not produce magnification greater than unity?

  • A. Due to its curved surface
  • B. Because image size equals object size
  • C. Because it forms a real image
  • D. Due to dispersion of light

Q2. A telescope has an objective of focal length \( 160 \, \text{cm} \) and an eyepiece of focal length \( 8 \, \text{cm} \). What is its magnifying power?

  • A. 15
  • B. 18
  • C. 20
  • D. 25

Q3. An object is placed \( 14 \, \text{cm} \) from a convex mirror of focal length \( 28 \, \text{cm} \). What is the magnification?

  • A. 0.5
  • B. 0.6
  • C. 0.7
  • D. 0.67

Q4. An object is at a depth of \( 15 \, \text{cm} \) in water (\( n = 1.5 \)). What is the apparent depth?

  • A. 10 cm
  • B. 12 cm
  • C. 15 cm
  • D. 18 cm

Q5. An object is placed \( 20 \, \text{cm} \) from a concave mirror of focal length \( 8 \, \text{cm} \). What is the image distance?

  • A. 10 cm
  • B. 12 cm
  • C. 13.3 cm
  • D. 15 cm

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