NEET Physics: Ray Optics — MCQ Test 17

Q6. A convex mirror has a radius of curvature of \( 50 \, \text{cm} \). An object is placed \( 25 \, \text{cm} \) from it. What is the image distance?

Q7. A concave lens of focal length \( 15 \, \text{cm} \) has an object placed \( 30 \, \text{cm} \) from it. What is the image distance?

Q8. A concave lens has a power of \( -2 \, \text{D} \). What is its focal length?

Q9. A concave lens of focal length \( 30 \, \text{cm} \) produces an image \( 15 \, \text{cm} \) from the lens. What is the object distance?

Q10. What optical principle allows a prism to be used as a reflector in optical devices?

NEET PhysicsRay Optics

Free MCQ Test 17 of 20

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An object is at a depth of \( 19.95 \, \text{cm} \) in a medium with refractive index \( 1.5 \). What is the apparent depth?

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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 10 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 Refractive, Apparent, Microscope, Critical, Interface, and Distance.

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. An object is at a depth of \( 19.95 \, \text{cm} \) in a medium with refractive index \( 1.5 \). What is the apparent depth?

  • A. 13.3 cm
  • B. 15 cm
  • C. 20 cm
  • D. 25 cm

Q2. Why does a concave mirror form a real image when the object is placed beyond the focal point?

  • A. Due to light diverging after reflection
  • B. Due to rays converging to a point after reflection
  • C. Due to reflection back to the focal point
  • D. Due to dispersion of light

Q3. In a simple microscope, why is the image formed larger when the object is placed closer to the lens than the focal point?

  • A. Due to light converging
  • B. Due to reduced focal length
  • C. Due to reflection inside the lens
  • D. Due to increased divergence of rays

Q4. What is the critical angle for a diamond (\( n = 2.42 \)) to water (\( n = 1.33 \)) interface?

  • A. 33°
  • B. 40°
  • C. 45°
  • D. 50°

Q5. A concave mirror of focal length \( 7 \, \text{cm} \) has an object placed \( 14 \, \text{cm} \) from it. What is the image distance?

  • A. 14 cm
  • B. 10 cm
  • C. 7 cm
  • D. 12 cm

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