NEET Physics: Ray Optics — MCQ Test 1

Q6. A prism of angle \( 60^\circ \) and refractive index \( 1.5 \) is placed in water (\( n = 1.33 \)). What is the new minimum deviation?

Q7. In a concave mirror, when an object is placed beyond the center of curvature, what is the nature of the image formed?

Q8. Why does a convex lens form a real image only when the object is outside the focal point?

Q9. A convex lens has a power of \( +5 \, \text{D} \). What is its focal length in centimeters?

Q10. What is the critical angle for a water-air interface (\( n_{\text{water}} = 1.33 \))?

Q11. A convex lens of focal length \( 15 \, \text{cm} \) has an object placed \( 30 \, \text{cm} \) from it. What is the magnification?

Q12. Why does the image formed by a convex lens become real and inverted when the object is moved beyond the focal point?

Q13. A convex mirror of radius of curvature \( 40 \, \text{cm} \) forms an image \( 10 \, \text{cm} \) behind the mirror. What is the object distance?

Q14. A convex lens of focal length \( 25 \, \text{cm} \) forms an image at \( 50 \, \text{cm} \) from the lens. What is the object distance?

Q15. A prism of angle \( 60^\circ \) and refractive index \( 1.45 \) produces what minimum deviation?

NEET Physics — Ray Optics

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What is the primary condition under which a convex lens forms a virtual and magnified 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 Condition, Magnified, Curvature, Distance, Critical, and Interface.

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. What is the primary condition under which a convex lens forms a virtual and magnified image?

  • A. Object between focal point and optical center
  • B. Object beyond twice the focal length
  • C. Object at the focal point
  • D. Object at twice the focal length

Q2. An object is placed \( 25 \, \text{cm} \) from a concave mirror of radius of curvature \( 40 \, \text{cm} \). What is the image distance?

  • A. 50 cm
  • B. 75 cm
  • C. 100 cm
  • D. 125 cm

Q3. What is the critical angle for a glass (\( n = 1.52 \)) to air interface?

  • A. 41°
  • B. 45°
  • C. 50°
  • D. 55°

Q4. A double convex lens of refractive index \( 1.5 \) has radii of curvature \( 12 \, \text{cm} \) and \( -12 \, \text{cm} \). What is its focal length?

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

Q5. A concave mirror of focal length \( 15 \, \text{cm} \) forms an image at \( 30 \, \text{cm} \) from the mirror. What is the object distance?

  • A. 30 cm
  • B. 20 cm
  • C. 15 cm
  • D. 10 cm

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