Phy 114 physics practical pass question paper

 Phy 114 physics practical

Objective Questions (Multiple Choice)

1. What is the least count of a vernier caliper with 10 divisions on the vernier scale?  

   a) 0.01 mm 

    b) 0.1 mm  

   c) 1 mm  

   d) 0.05 mm  

2. Which instrument is used to measure the diameter of a thin wire?  

   a) Vernier caliper  

   b) Micrometer screw gauge  

   c) Meter rule  

   d) Spherometer  

3. The SI unit of specific heat capacity is:  

   a) J/kg  

   b) J/kg°C  

   c) J°C  

   d) J/kgK  

4. In a simple pendulum experiment, the time period depends on:  

   a) Mass of the bob  

   b) Length of the string  

   c) Amplitude of oscillation  

   d) Material of the bob  

5. The focal length of a convex lens is determined by:  

   a) Lens maker’s formula  

   b) Using a distant object  

   c) Using a prism  

   d) Using a plane mirror  

6. The principle of moments states that for a body in equilibrium, the sum of clockwise moments is equal to the sum of ________ moments.  

7. The refractive index of a medium is given by the ratio of the speed of light in a vacuum to the speed of light in the ________.  

8. The formula for calculating the density of an object is mass divided by ________.  

9. The unit of electromotive force (EMF) is ________.  

10. The time period of a simple pendulum is given by the formula T = 2π√(________).  

11. A vernier caliper can measure lengths up to 0.01 cm accurately. (True/False)  

12. The specific heat capacity of water is 4200 J/kg°C. (True/False)  

13. The angle of incidence is always equal to the angle of reflection. (True/False)  

14. The internal resistance of a cell can be measured using a voltmeter alone. (True/False)  

15. The speed of sound in air increases with an increase in temperature. (True/False)  

16: Which of the following is used to measure the specific gravity of a liquid?  

   a) Hydrometer  

   b) Barometer  

   c) Thermometer  

   d) Voltmeter  

17. The unit of specific latent heat is:  

   a) J/kg  

   b) J/kg°C  

   c) J°C  

   d) J/kgK  

18. The formula for calculating the efficiency of a machine is:  

   a) (Output/Input) × 100  

   b) (Input/Output) × 100  

   c) Output × Input  

   d) Output + Input  

19. The critical angle for water is approximately:  

   a) 48°  

   b) 49°  

   c) 50°  

   d) 51°  

20. The unit of viscosity is:  

   a) Ns/m²  

   b) N/m²  

   c) N/m  

   d) Ns/m  

21. The formula for calculating the power of an electric circuit is P = ________.  

22. The unit of electromotive force (EMF) is ________.  

23. The principle of moments states that for a body in equilibrium, the sum of clockwise moments is equal to the sum of ________ moments.  

24. The formula for calculating the refractive index of a medium is n = ________.  

25. The unit of magnetic flux density is ________.  

26. Which of the following is used to measure the refractive index of a glass block?  

   a) Sonometer  

   b) Spectrometer  

   c) Hydrometer  

   d) Calorimeter  

27. The unit of Young’s modulus is:  

   a) N/m  

   b) N/m²  

   c) N/m³  

   d) N/m⁴  

28. The critical angle for a medium depends on:  

   a) Wavelength of light  

   b) Temperature of the medium  

   c) Refractive index of the medium  

   d) Density of the medium  

29. The formula for calculating the power of an electric circuit is:  

   a) P = IV  

   b) P = I²R  

   c) P = V²/R  

   d) All of the above  

30. The speed of sound in air at room temperature is approximately:  

   a) 330 m/s  

   b) 340 m/s  

   c) 350 m/s  

   d) 360 m/s 

Essay Questions 

1a. Describe an experiment to determine the coefficient of static friction between two surfaces.  

1b. Explain how to measure the speed of sound in air using a resonance tube.  

1c. Discuss the procedure for determining the Young’s modulus of a wire.  

2a. Describe an experiment to measure the viscosity of a liquid using Stokes’ law.  

2b. Explain how to verify the laws of reflection using a plane mirror.  

2c. Describe an experiment to determine the density of a liquid using a density bottle.  

3a. Explain how to measure the focal length of a convex lens using a distant object.  

3b. Discuss the procedure for verifying Ohm’s law in a laboratory.  

3c. Describe an experiment to determine the acceleration due to gravity using a simple pendulum.