1.
Which instrument used for finding out wind-direction?
2.
Why is 'Beaufort Scale' used?
Answer and Explanation
Explanation :
To measure wind velocity
3.
What denotes the smallest temperature?
Answer and Explanation
Explanation :
1 ° on the Kelvin scale
4.
A temperature at which both the Fahrenheit and the centigrade scales have the same value?
5.
Angular separation between two colours of the spectrum depends upon which thing?
Answer and Explanation
Explanation :
Angle of deviation
6.
Total internal reflection of light is possible when light enters from which thing?
Answer and Explanation
Explanation :
Water to air
7.
What is a suitable unit for expressing electric field strength?
8.
The unidirectional property of a pn-junction is useful for its use as which thing?
9.
Thermal decomposition of alkanes is known as which name?
10.
Which energy of the electron at absolute zero is called?
Answer and Explanation
Explanation :
Fermi energy
11.
What is the wavelength of visible spectrum?
Answer and Explanation
Explanation :
3900-7600 A
12.
We cannot see during a fog. why?
Answer and Explanation
Explanation :
Because of scattering of light
13.
What is meant by 'Underwriting', the term frequently used in financial sector?
Answer and Explanation
Explanation :
Under valuation of the assets.
14.
What will be If a pendulum clock be taken from the earth to a revolving artificial satellite?
Answer and Explanation
Explanation :
It will stop altogether
15.
Which physical quantities have the same dimensions?
Answer and Explanation
Explanation :
Momentum and impulse