A convex mirror always ___________ ?

A. Forms a real image
B. Forms a virtual image
C. Forms an inverted image
D. Produces a larger image

A doctor who specializes in diseases of the nose?

A. Rhinologist
B. Otologist
C. Pathologist
D. Podiatrist

The distance between the optical centre of a convex lens and its principal focus is called its_______?

A. Focal length
B. Radius of curvature
C. Power
D. Magnification

Why the colour of the Ocean appears blue?

A. Because the sunlight falling on it is scattered.
B. Because the sunlight falling on it is absorbed.
C. Because the sunlight falling on it is refracted.
D. Because the sunlight falling on it is reflected.

What type of a mirror is used in anti-shop-lifting-devices?

A. Convex mirror
B. Concave mirror
C. Plane mirror
D. Both (b) and (c)

Dental mirror is what type of a mirror?

A. Convex mirror
B. Concave mirror
C. Plane mirror
D. None of these

Which of the following pairs belong to the category of cold blooded animals?

A. Snakes and birds
B. Bat and rats
C. Frog and snakes
D. Birds and monkey

The human heart is _______ ?

A. Ampullary heart
B. Pulsating heart
C. Myogenic heart
D. Neurogenic heart

What is the scientific name of flying fish ?

A. Exocoetidae
B. Anoplopoma fimbria
C. Orthopsetta sordida
D. Xiphias gladius

Which one of the following is the main culprit in the thinning of Ozone layer in the earth’s stratosphere?

A. Carbon dioxide
B. Chlorofluorocarbons
C. Nitrogen oxides
D. Methane