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Physics
USB stands for ______?
A
Universal serial bussines
B
Universal serial Bus
C
Universal secondary Bus
D
Unary serial Bus
Correct Answer
B
Physics
The main source of energy in the stars is _____?
A
Chemical reaction
B
Nuclear fusion
C
Nuclear fission
D
Mechanical energy
Correct Answer
C
Physics
The ?-radiation is _______?
A
A form of electromagnetic radiation
B
A stream of fast-moving electrons
C
Highly ionizing than ?-radiation
D
None of these
Correct Answer
C
Physics
How many atomic particles of an atom?
A
3
B
4
C
5
D
None of these
Correct Answer
A
Physics
In a concave mirror, the image size depends upon _____?
A
Size of the object
B
Area covered by the object
C
Position of the object
D
The shape of the object
Correct Answer
C
Physics
The maximum mass of an atom is concentrated in _____?
A
Electron
B
Proton
C
Nucleus
D
Neutron
Correct Answer
C
Physics
Short-sightedness defect can be corrected by wearing a _____?
A
Convex lens
B
Cancave lens
C
Prism lens
D
None of these
Correct Answer
B
Physics
The audible range of normal human ear is ____?
A
16 Hz to 20kHz
B
10 Hz to 31kHz
C
67 Hz to 45kHz
D
20 Hz to 20kHz
Correct Answer
D
Physics
The splitting of a heavy nucleus into smaller nuclei is called?
A
Fusion
B
Fission
C
Half life
D
Gamma decay
Correct Answer
B
Physics
What is the SI unit of momentum?
A
kgยทm/s
B
Joule
C
Newton
D
Pascal
Correct Answer
A