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General Knowledge - Physics

Exercise : Physics - Section 1
  • Physics - Section 1
21.
Magnetism at the centre of a bar magnet is
minimum
maximum
zero
minimum or maximum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
It is more difficult to walk on a sandy road than on a concrete road because
sand is soft and concreter is hard
the friction between sand and feet is less than that between concrete and feet
the friction between sand and feet is more than that between concrete and feet
the sand is grainy but concrete is smooth
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2
0.14 m/s
140 m/s
1.4 km/s
14 m/s
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Of the following properties of a wave, the one that is independent of the other is its
amplitude
velocity
wavelength
frequency
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
Lux is the SI unit of
intensity of illumination
luminous efficiency
luminous flux
luminous intensity
Answer: Option
Explanation:
The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m^2.
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