Everyday science mcqs | GK MCQ Preparation Material

1- Most of the ozone in the atmosphere is concentrated in the _____________?

Stratosphere

B. Troposphere

Mesosphere

ionosphere

2- An iceberg is floating in sea. How much of its mass will remain above the surface of water?

One third

One fifth

One fourth

One tenth

3- An astronaut inside a spacecraft is in a state of weightlessness. This implies that?

The astronaut and the spacecraft are both in a free-failing state

The astronaut is outside the influence of the earthâ€™s gravitational force

Gravity inside the spacecraft ceases to act

The mass of the astronaut is reduced to zero

4- The sun appears red at sunrise and sunset while it appears white at noon, because

It is cooler at sunrise and at sunset

Of refraction

Of diffraction leading to red end of the spectrum reaching the earth.

Of Scattering of light due to dust particles and air molecules.

5- A lake starts freezing because of the cold atmosphere. It will first freeze

Uniformly throughout the water body

At the bottom

ln the middle pan

At the top surface

6- The beautiful color patterns exhibited by a peacock in its tail feathers are due to ?

Selective absorption of light

selective re ection of light

Natural colour pattern of feathers

Sinterference of light

7- What is the average adult pulse rate?

72-80

140-150

115-125

8- When a person enters a dark room from bright light he is not able to see clearly for a little while because the?

Eye is unable to adjust itself immediately

Distance between the lens and retina take time to adjust

Iris is unable to dilate the pupil immediately

Retina becomes insensitive momentarily

9- Which part of the Camera is analogue to the retina in the human eye?

Lens

Aperture

Film

Shutter

10- Dolly is the name of the ?

First cloned monkey

First human fossil

First test-tube baby

First cloned sheep

11- The most important stimulant in tea leaves is?

Brucine

Theine

Caffeine

Phenylalanine

12- Dialysis is used for the treatment of__________?

Heart weakness

Kidney failure

None of these

Brain diseases

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