physics general knowledge
1. Which of the following is not fundamental force in nature ?
a) electrostatic force
b) nuclear power plant force
c) tension
d) new force
Answer: tension
2.What is SI units of angular momentum ?
a) kg.m²/s
b) kg. ms²+
c) kg.ms² -
d) kg.ms³_+
Answer: Kg.ms²/s
3.speed of sound wave in air is ?
a) increase with increase in humidity
b) decrease down in velocity
c) remains constant
d) increase in pressure
Answer: increase with increase in humidity
4.which of the following are not scalar Quantity ?
a) temperature
b) subsrtacti
c) mode of friction
d) module
Answer: temperature
5.what it's mean area under force _ Displacement curve represents?
a) work is done
b) friction
c) torque
d) angular momentum
Answer: work is done
6.path followed by projectiles is ?
a) straight line
b) circular motion
c) palindromes
d) Epic center
Answer: straight line
7.A couple produce only in ?
a) only Rotational motions
b) linear motions
c) angular momentum
d) circular motion
Answer: only Rotational motions
8:What is value of g is ?
a) it represents maximum at pole
b) it represents high velocity
c) it represents high degree
d) it represents EQ
Answer: it represents maximum at pole .
9.the center of mass of body is ?
a) lie at the epic center of the body
b) lie outside the the body
c) lie inside the body
d) may be lie within or outside of body
Answer: may be lie within or outside of body
10.acoording to the hook law of the elasticity ,if the stress is increased what will be the ratio of stress to strain ?
a) remains constant
b) increasing
c) decreasing
d) zero
Answer: remains constant
11.which of the following force is not a conservative force ?
a) force of friction
b) electrostatic force
c) torque force
d) gravitational force
Answer: force of friction
12.If a crane lifts a mass of 100 kg to a height of 10m in 20 sec .the power of crane is (take g= 10ms/s²)
a) 500 watt
b) 600 watt
c) 400 watt
d) 300 watt
Answer: 500 watt
13.What is SI unit of surface tension is ?
a) N.m-¹
b) Nm²
c) N.mà²
d) Ñm _4
Answer: N.m-¹
14.What is height of geostationary satellite is ?
a) 6700 km
b) 4500 km
c) 1000 km
d) 3600 km
Answer: 3600
15.what is unit of viscosity ?
a) ohm-1
b) Ohm-²
c) poise
d) Henry
Answer: poise
16.Bernouli,s principles is a fundamental principles at fluid dynamics based on the lwa of the ?
a) conservation of energy
b) angular momentum
c) conservation of energy
d) conservation of mass of energy
Answer: conservation of energy
17.The ratio of shearing stress to the shearing strain is defined as the ?
a) shear modulus
b) Bulk modulus
c) young modulus
d) game Modulus
Answer: shear modulus
18.what is time period of second pendulum ?
a) 2 second
b) 3 second
c) 4 second
d) 5 second
Answer : 4 second
19.which of the following fastest mode of transfer ?
a) Radiation
b) heat
c) temperature
d) cell conductor
Answer: Radiation
20.internal energy of an isolated system ?
a) cease
b) decrease
c) remains same
d) increase down
Answer: remains same
21.in the process of isothermal ?
a) temperature remains constant
b) temperature below of the peak point
c) temperature increase
d) temperature niether increase or decrease
Answer: temperature niether increase or decrease
22.first laws of thermodynamics leads to ?
a) conservation of mass
b) conservation of energy
c) energy can transfer from one system to another system
d) angular momentum
Answer: conservation of mass
23.sound wave travel fastest in the ?
a) water
b) solid
c) room
d) outside
Answer: water
24.Which one of the following transerve wave consist of ?
a) rarefraction and compression
b) index refraction
c) mutual co index
d) frictional force
Answer: rarefraction and compression
25. What is S.I unit of acceleration ?
a) ms-²
b) ms_³
c) ms-⁴
d) msn-²
Answer: ms-²