Physics Quiz: Gravity and Spring Systems

What is the gravitational acceleration on the surface of the Earth?

GπR/ρ
GπRρ (correct)
GπR^2ρ
GπR^2/ρ

What is the approximate current in the circuit if the forward voltage drop for the diode is 0.5 V?

3.4 mA (correct)
3 mA
2 mA
2.5 mA

What is the force constant of the spring system shown in the figure?

k1 + k2
k1/k2 + 1
k2/k1 + 1
k1k2/(k1 + k2) (correct)

What is the power factor of a RC circuit if its frequency of AC signal is halved?

1/√5 (B) Signup and view all the answers

What is the angular speed of the cubical block after it hits the ridge at point O?

3v/(2a) (D) Signup and view all the answers

What is the formula for critical velocity in a fluid flow?

vC = Nη/ρD (A) Signup and view all the answers

Which of the following statements is true about the measurements of the pipe's length?

Both measurements are equally accurate but not equally precise (A) Signup and view all the answers

What is the ratio of charges on the inner and outer surfaces of shell C?

-2/3 (C) Signup and view all the answers

What are the charges on S1 and S2 after they are connected by a conducting wire?

4.5 μC and -4.5 μC (C) Signup and view all the answers

What is the net charge on the outer surface of shell C?

Zero (D) Signup and view all the answers

What is the horizontal component of the initial velocity of the projected body?

8 m/s (B) Signup and view all the answers

What is the direction of the initial velocity of the projected body?

tan⁻¹(6/8) (C) Signup and view all the answers

What is the number of folds in the paper?

10 (D) Signup and view all the answers

How is the letter 'A' represented in the Matrix?

11, 23 (A) Signup and view all the answers

What is the set of numbers for the word 'BEE'?

12, 15, 33 (D) Signup and view all the answers

What is the code for 'DICK' in the given word code?

3579 (B) Signup and view all the answers

What is the code for 'PIC' in the given word code?

657 (D) Signup and view all the answers

What is the code for 'NIC' in the given word code?

507 (A) Signup and view all the answers

What is the time period of the particle executing SHM?

9s (A) Signup and view all the answers

How much heat is required to raise the temperature of 2 moles of an ideal gas from 30℃ to 35℃ at constant volume?

60 cal (B) Signup and view all the answers

Which of the following has a mass closest in value to that of the positron?

Electron (B) Signup and view all the answers

What is the angular acceleration of the body undergoing circular motion whose angle turned is given by θ = θ0 + θ1 t + θ2 t^2?

2θ2 (A) Signup and view all the answers

What can be asserted about a nucleus of 131I at time t = 0?

It has a 50% chance of decaying before t = 4 days (D) Signup and view all the answers

What is the probability that a nucleus of 131I will decay before t = 4 days?

50% (B) Signup and view all the answers

What is the rate of reaction when the concentration of X is 0.01M?

1.73 × 10^(-4) M/min (D) Signup and view all the answers

What is the correct order of acidity of the positions (X), (Y), and (Z) in the given compound?

(X) > (Z) > (Y) (D) Signup and view all the answers