The spherical shape of a small drop of rain is due to:
- (A) Gravity
- (B) Surface tension
- (C) Viscosity
- (D) Atmospheric pressure
- (B) Surface tension
As per first law of thermodynamics, energy of an isolated system is:
- (A) Zero
- (B) One
- (C) Constant
- (D) Infinite
- (C) Constant
Which phenomenon do bats and dolphins used to find obstacles?
- (A) Scattering of sound
- (B) Echo
- (C) Formation of beats
- (D) Refraction of sound
- (B) Echo
Which wave travel with almost the velocity of light?
- (A) Blue wave
- (B) Radio waves
- (C) Ultra-sonic wave
- (D) Solar wave
- (B) Radio waves
One horse power is equal to how many Watt?
- (A) 546 Watt
- (B) 646 Watt
- (C) 746 Watt
- (D) 846 Watt
- (C) 746 Watt
Which one of the following color has maximum energy?
- (A) Violet light
- (B) Green light
- (C) Red light
- (D) Yellow light
- (A) Violet light
The ‘escape velocity’ is needed to leave the earth (approximately) is:
- (A) 11.2 km/s
- (B) 12.2 km/s
- (C) 13.2 km/s
- (D) 14. 2 km/s
- (A) 11.2 km/s
GPS is a group of how many satellites that transmit signals all over the world?
- (A) 12 satellites
- (B) 16 satellites
- (C) 20 satellites
- (D) 24 satellites
- (D) 24 satellites
What is the full form of LTE with respect to mobile communication?
- (A) Limited Transmitted Energy
- (B) Long Term Evolution
- (C) Least Effective Transportation
- (D) Low Transformation Energy
- (B) Long Term Evolution