The longitudinal waves travel more slowly in _____ than _____ in.
- Liquid, gases
- Solids, gases
- Gases, solids
- Solids, liquid
The angular speed of the second hand of a watch is:
- (π/60) rad/sec
- (π/30) rad/sec
- (π/1800) rad/sec
- (2n) rad/sec
A fly wheel rotates at constant speed of 600 rpm. The angle described by the shaft In radian in one second is
- 100 π
- π/24
- 20 π
- 24 π
The angular speed In radian/hour for daily rotation of our earth is
- π/24
- π/12
- 24 π
- 12 π
The speedometer of a car shows 36 km/hr. The angular speed of the wheels having 0.5m radius is:
- 5 rad/sec
- 10 rad/sec
- 15 rad/sec
- 20 rad/sec
Which of the following bodies has the largest kinetic energy
- Mass 3M and speed 3V
- Mass M and speed 4V
- Mass 3M and speed 2V
- Mass 3M and speed V
The weight of a body is 120 N and it Is lifted to height 10m. work done on the body is:
- 100 J
- 1000 J
- 1200 J
- 120 J
When the range of projectile is equal to one fourth of the height then which one is true
- Tanθ = 10
- Tanθ = 1
- Tanθ = 16
- Tanθ = 12
Complete the following series: KCD, LEF, MGH, _____, OKL.
- PJI
- NQM
- NIJ
- NJI
Alkoxy carbonyl functional group is present in:
- Aldehyde
- Ether
- Ester
- Carboxylic acid
