NEET Physics: Ray Optics — MCQ Test 6

Q6. What is the critical angle for a diamond-air interface if the refractive index of diamond is \( 2.42 \)?

Q7. A concave lens of focal length \( 12 \, \text{cm} \) has an object placed \( 24 \, \text{cm} \) from it. What is the image distance?

Q8. An object is at a depth of \( 24 \, \text{cm} \) in a medium with refractive index \( 1.6 \). What is the apparent depth?

Q9. What optical property of a prism allows it to be used in binoculars to invert images?

Q10. A glass slab (\( n = 1.5 \)) of thickness \( 9 \, \text{cm} \) is placed over a mark. What is the apparent shift?

Q11. A simple microscope uses a convex lens of focal length \( 5 \, \text{cm} \). What is the magnification when the image is at \( 25 \, \text{cm} \)?

Q12. An object is placed \( 14 \, \text{cm} \) from a convex mirror of focal length \( 28 \, \text{cm} \). What is the magnification?

Q13. An object is placed \( 15 \, \text{cm} \) in front of a concave mirror of focal length \( 10 \, \text{cm} \). Where is the image formed?

Q14. A concave lens has a focal length of \( 20 \, \text{cm} \). Where should an object be placed to get an image half the size of the object?

Q15. What happens to light rays when they strike a convex mirror at an angle parallel to its principal axis?

NEET Physics — Ray Optics

Free MCQ Test 6 of 20

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A convex mirror of focal length \( 15 \, \text{cm} \) forms an image of an object placed \( 45 \, \text{cm} \) from it. What is the magnification of the image?

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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, Distance, Incidence, Refraction, Effective, and Critical.

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. A convex mirror of focal length \( 15 \, \text{cm} \) forms an image of an object placed \( 45 \, \text{cm} \) from it. What is the magnification of the image?

  • A. 0.2
  • B. 0.25
  • C. 0.33
  • D. 0.5

Q2. A convex mirror of focal length \( 10 \, \text{cm} \) forms an image \( 5 \, \text{cm} \) behind the mirror. What is the object distance?

  • A. 5 cm
  • B. 10 cm
  • C. 15 cm
  • D. 20 cm

Q3. A lens has a power of \( -3 \, \text{D} \). What is its focal length?

  • A. -25 cm
  • B. -30 cm
  • C. -33 cm
  • D. -40 cm

Q4. A ray of light passes from air (\( n = 1 \)) to water (\( n = 1.33 \)) at an angle of incidence of \( 35^\circ \). What is the angle of refraction?

  • A. 26°
  • B. 30°
  • C. 35°
  • D. 40°

Q5. A convex lens (\( f = 25 \, \text{cm} \)) and a concave lens (\( f = 50 \, \text{cm} \)) are in contact. What is the effective focal length?

  • A. 40 cm
  • B. 45 cm
  • C. 50 cm
  • D. 55 cm

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