Physics - Study Mode

[#461] A colour-blind person cannot
Correct Answer

(C) Distinguish between certain colours

Explanation

Solution: A colour-blind person cannot distinguish between certain colours.

[#462] Magnifying Glass is basically a
Correct Answer

(C) Convex lens

Explanation

Solution: A magnifying glass (called a hand lens in laboratory contexts) is a convex lens that is used to produce a magnified image of an object.

[#463] A microscope used in pathological laboratories forms
Correct Answer

(C) Magnified, virtual and inverted image

Explanation

Solution: A microscope is an instrument that produces a clear magnified image of an object viewed through it. A basic microscope is made up of two converging lenses. The first lens creates a real image which serves as the object for the second lens, and the image created by the second lens is the one a viewer sees. The final image is virtual and is inverted compared to the original object.

[#464] Which of the following characteristics of light remains unchanged when light travels from vaccum enters water?
Correct Answer

(C) Frequency

Explanation

Solution: Frequency of light remains unchanged when light travels from vaccum enters water.

[#465] To resolve an object in an electron microscope,
Correct Answer

(A) The wavelength of the electrons must be close to the diameter of the object

Explanation

Solution: To resolve an object in an electron microscope, the wavelength of the electrons must be close to the diameter of the object.