Q no 1: Conservation of angular momentum is confirmed by Kepler Law?
Kepler law of orbits
Kepler law of periods
Kepler law of areas
None of these
Q no 2 : T^2 is proportional to which power of mean distance between planets and sun between (PPSC 2022)?
3/2
1/2
2/3
None of these
Q no 3: Equal areas are swept by radial line in time intervals?
unequal time intervals
Equal time intervals
Both
None of these
Q no 4: Speeds of planets are …… Near to the sun will be?
High
Low
Remains same
All of these
Q no 5: All real pendulums are?
Ideal pendulums
Second’s pendulum
Conical Pendulum
Physical Pendulum
Q no 6: The path of planet will elliptical if with sun at one foci?
V=Vc
V less than Vc
V greater than Vc
All of these
Q no 7: If orbital speed of satellite will be greater than escape speed than path of satellite will be?
Hyperbola
Parabola
Elliptical
Circular
Q no 8: Torsional oscillator rotates in which type of plane?
Vertical plane like simple pendulum
Like physical pendulum
Like conical pendulum will form a cone
None of these
Q no 9: Which type of pendulum/Oscillator was used to find value of G?
Physical Pendulum
Conical pendulum
Torsional oscillator
Simple pendulum
Q no 10: Can the physical pendulum have same time as simple pendulum when pivot point is suspension point and c.o.m of physical pendulum is is c.o.m of bob?
No both cannot have same T
Yes both can have same T
None of these
Q no 11: Which of the pendulum/ Oscillator have constant speed while vobrating?
Simple pendulum
Torsional oscillator
Conical pendulum
Q no 12: when a wave will travel from a densor medium to rearer the change in its phase will be?
180 degree
90°
45°
0°
Q no 13: In SHM displacement, velocity and acceleration at mean position will be?
Max,min,min
Min,min,max
Max,min,max
All of these
Q no 14: Sound travel faster in moist air because:?
moist air density is less than dry air
moist air density is greater than dry air
both have same speed
none of these
Q no 15: Transverse waves can travel easily in which medium?
Solids
Liquids
Can travel easily in both
None
