assertion rsn + mcq

Assertion: For observing the traffic at the hairpin bend in the mountains a plane mirror is preferred over convex or concave mirror.

Reason: A convex mirror has a much larger field view than a plane mirror or a concave mirror.

• Both Assertion and Reason are true and Reason is the correct explanation of Assertion.

• Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.

• Assertion is true but Reason is false.

• Assertion is false but Reason is true.

Which of the following characteristics are correct for the image formed in a plane mirror?

I. Upright

II. Inverted

III. Real

IV. Same size as the object

V. Virtual

• I, II, III

• I, III, IV

• I, IV, V

• III, IV, V

A ray of light travels from air into a glass block.

Which diagram correctly shows the path of the ray through the glass block?

• A

• B

• C

• D

Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.

Reason: There are no rods or cones present at the junction of optic nerve and retina in the eye.

• Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

• The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

• Assertion is true but the Reason is false

• The statement of the Assertion is false but the Reason is true.

Assertion: The near-point of a hypermetropic eye is more than 25 cm away.

Reason: Hypermetropia is corrected using spectacles containing concave lenses.

• Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

• The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

• Assertion is true but the Reason is false

• The statement of the Assertion is false but the Reason is true.

A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power

• +0.5D

• -0.5D

• +0.2D

• -0.2D

. A ray of light passes from a medium X to another medium Y. No refraction of light occurs if the ray of light hits the boundary of medium Y at an angle of:

• 120^o

• 0^o

• 90^o

• 45^o

What type of lens creates the image seen in the eyeglasses?

• convex

• concave

• reflection

• plane

Assertion (A): concave mirrors are used as makeup mirrors.

Reason (R): when the face is held within the focus of concave mirror, then or diminished image of the face is seen in the concave mirror.

• Both assertion and reason are correct and reason is the correct explanation oh is Assertion.

• Both assertion and reason are correct and reason is not the correct explanation of assertion

• Assertion is true but reason is false

• Assertion is false but reason is true