Science Practice Quiz 89

Q1.According to the provided table, what is a common characteristic of all real images formed by a convex lens?

A. They are always diminished. B. They are always erect. C. They are always inverted. D. They are always virtual.

Q2.What is the nature of the image always formed by a concave lens, irrespective of the object's position?

A. Real, inverted, and magnified B. Virtual, inverted, and diminished C. Virtual, erect, and diminished D. Real, erect, and magnified

Q3.According to ray diagrams, a ray of light from an object, parallel to the principal axis, after refraction from a convex lens, passes through which point?

A. The optical centre B. The principal focus on the same side C. The principal focus on the other side D. The centre of curvature

Q4.In the case of a concave lens, a ray of light from an object, parallel to the principal axis, after refraction, appears to diverge from which point?

A. The optical centre B. The principal focus located on the same side of the lens C. The principal focus located on the other side of the lens D. The centre of curvature

Q5.When an object is placed at infinity from a concave lens, what is the nature and relative size of the image formed?

A. Real and inverted, highly magnified B. Virtual and erect, highly diminished and point-sized C. Real and erect, diminished D. Virtual and inverted, magnified

Q6.For a concave lens, if the object is placed at infinity, where is the image formed?

A. At the optical centre O B. At focus F1 C. Between focus F1 and optical centre O D. At the centre of curvature

Q7.What is the nature and relative size of the image formed by a concave lens when the object is placed between infinity and the optical centre O?

A. Real and inverted, magnified B. Virtual and erect, diminished C. Real and erect, point-sized D. Virtual and inverted, highly magnified

Q8.When an object is placed between infinity and the optical centre O of a concave lens, where is the image formed?

A. At focus F1 B. Between focus F1 and optical centre O C. At infinity D. At the centre of curvature

Q9.What happens to a ray of light that passes through a principal focus of a convex lens after refraction?

A. It deviates towards the optical centre. B. It emerges parallel to the principal axis. C. It converges at the secondary focus. D. It reflects back along its original path.

Q10.For a concave lens, what is the behavior of a ray of light that appears to meet at its principal focus after refraction?

A. It passes through the optical centre without deviation. B. It emerges parallel to the principal axis. C. It converges at a point on the principal axis. D. It reflects back towards the source.

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Science Practice Quiz 89