HARD
12th West Bengal Board
IMPORTANT
Earn 100

Assertion: Normal eye cannot see objects clearly which are situated less than away from the eye.
Reason: The distance of the retina from the eye lens is less than
(a)Both assertion and reason are true and the reason is complete explanation of the assertion.
(b)Both assertion and reason are true but reason is not complete explanation of the assertion.
(c)The assertion is true but the reason is not.
(d)The reason is true but the assertion is not.

50% studentsanswered this correctly

Important Questions on Human Eye and Optical Instruments
HARD
12th West Bengal Board
IMPORTANT
Assertion: The single lens of a simple microscope sometimes produces coloured image of a white object.
Reason: Single-lens always suffer from chromatic aberration.

HARD
12th West Bengal Board
IMPORTANT
Assertion: Street lamp-posts appear to be shorter the farther they are, although, they are all the same height.
Reason: The angle subtended at the eye by far-away posts are shorter.

HARD
12th West Bengal Board
IMPORTANT
Assertion: The magnification of a simple microscope .
Reason: Magnification

MEDIUM
12th West Bengal Board
IMPORTANT
Assertion: The magnification of the compound microscope is negative.
Reason: The final image in the compound microscope is inverted with respect to the object.
