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Science and Technology - General Knowledge Questions
A)
Potassium
B)
Calcium
C)
Sodium
D)
Iron

Correct Answer : Option (A) - Potassium

A)
Dispersed radiation
B)
Stimulated radiation
C)
Scattered radiation
D)
Spontaneous radiation

Correct Answer : Option (B) - Stimulated radiation

Laser is a device for producing stimulated radiation. LASER stands for light amplification by stimulated emission of (electromagnetic) radiation.

A)
Of the friction in the coil
B)
Days in summer are large
C)
The weight of the pendulum changes
D)
The length of the pendulum increases

Correct Answer : Option (D) - The length of the pendulum increases

During summer, length of pendulum increases due to which the time period T increases and pendulum takes more time to complete one oscillation. Thus it becomes slow in summer.

A)
Jena glass
B)
Crookes glass
C)
Pyrex glass
D)
Soda glass

Correct Answer : Option (B) - Crookes glass

Types of glass that can cut off ultraviolet rays are Crookes glass.

A)
hormones
B)
vitamins
C)
enzymes
D)
None of the above

Correct Answer : Option (C) - enzymes

A)
small angle
B)
right angle
C)
large angle
D)
None of the above

Correct Answer : Option (A) - small angle

The earth receives energy from the Sun in the form of radiation . The Earth reflects about 30% of the incoming solar radiation. In polar areas, solar radiation strikes earth at a low angle. The more acute the angle at which the sunlight strikes, the more atmosphere that sunlight must pass through.

A)
Continental rise
B)
Submarine ridges
C)
Continental shelf
D)
Abyssal plains

Correct Answer : Option (C) - Continental shelf

Continental Shelf is a gentle seaward sloping surface extending from the coasts towards the open sea. In all, about 7.5% of the total area of the oceans is covered by the continental shelves.

A)
smell receptor
B)
touch receptors
C)
pressure receptors
D)
nociceptors

Correct Answer : Option (D) - nociceptors

A)
Clay vessels
B)
Sharp lines and details
C)
Both (a) & (b)
D)
None of the above

Correct Answer : Option (B) - Sharp lines and details

Tempera paint is often used to create Sharp lines and details. This paint is popular in schools and can be used for finger painting.

A)
tibia
B)
fibula
C)
femur
D)
stapes

Correct Answer : Option (C) - femur

The femur is one of the most researched bones in the human anatomy and forensic medicine. As the longest bone in the human body, it is well preserved in skeletal remains.