AP EAPCET 2022 Sample Questions
1. If momentum [P], area [A] and time [T] are taken as fundamental quantities, then the dimensional formula for the coefficient of viscosity is
(A) [PAโ1T0]
(B) [PATโ1]
(C) [PAโ1T]
(D) [PAโ1Tโ1]
Answer (A)
2. Which of the following physical quantities have the same dimensions?
(B) Displacement current and electric field
(C) Current density and surface charge density
(D) Electric potential and energy
Answer (A)
3. A body of mass 0.5 kg travels on a straight line path with velocity v = (3x2 + 4) m/s. The network done by the force during its displacement from x = 0 to x = 2 m is
(A) 64 J
(B) 60 J
(C) 120 J
(D) 128 J
Answer (B)
4. Three identical particles A, B and C of mass 100 kg each are placed in a straight line with AB = BC = 13 m. The gravitational force on a fourth particle P of the same mass is F, when placed at a distance 13 m from the particle B on the perpendicular bisector of the line AC. The value of F will be approximately
(A) 21G
(B) 100G
(C) 59G
(D) 42G
Answer (B)
5. Following statements are given:
(A) The average kinetic energy of a gas molecule decreases when the temperature is reduced.
(B) The average kinetic energy of a gas molecule increases with an increase in pressure at a constant temperature.
(C) The average kinetic energy of a gas molecule decreases with increase in volume.
(D) Pressure of a gas increases with an increase in temperature at constant pressure.
(E) The volume of gas decreases with an increase in temperature.
Choose the correct answer from the options given below:
(A) (A) & (D) only
(B) (A), (B) & (D) only
(C) (B) & (D) only
(D) (A), (B) & (E) only
Answer (Bonus)
Sol. Because KE โT so A is correct, B is incorrect, statement C cannot be said, statement D is contradicting itself, statement E is incorrect (Isothermal process)
So No answer correct (Bonus)
If the statement of D would have been.
โPressure of gas increases with increase in temperature at constant volume, โthen statement D would have been correct, so in that case answer would have been โAโ.
6. To increase the resonant frequency in series LCR circuit,
(A) Source frequency should be increased.
(B) Another resistance should be added in series with the first resistance.
(C) Another capacitor should be added in series with the first capacitor.
(D) The source frequency should be decreased.
Answer (C)
