PHYSICS PART 4

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PHYSICS PART 4
 Here are **16 multiple-choice physics questions** along with their answers:


31. **A vehicle moving on a circular path experiences ________?**
 - [A] centripetal force
 - [B] centrifugal force
 - [C] gravitational force
 - [D] None of the above
 - **Answer: [A] centripetal force** ¹

32. **Which among the following is measured by an Odometer?**
 - [A] Pressure
 - [B] Height
 - [C] Distance
 - [D] Velocity
 - **Answer: [C] Distance**

33. **Which among the following orbits are more prone to the harms of space debris or space junk in comparison to others?**
 - [A] Polar Sun Synchronous Orbit
 - [B] Low Earth Orbit
 - [C] Geosynchronous orbit
 - [D] Geostationary Orbit
 - **Answer: [B] Low Earth Orbit** ¹

34. **Which among the following radio frequencies are used around the world in the air navigational system?**
 - [A] Very Low Frequency (VLF)
 - [B] Very High Frequency (VHF)
 - [C] Tetrahertz Radiation (THF)
 - [D] Ultra High Frequency (UHF)

 - **Answer: [B] Very High Frequency (VHF)** 


35. **The acceleration due to gravity on any planet does not depend on which of the following?**
 - [A] Radius of the planet
 - [B] Mass of the planet
 - [C] Density of the planet
 - [D] Mass of the object

 - **Answer: [A] Radius of the planet**


36. **What is the unit of electric current?**
 - [A] Volt
 - [B] Ampere
 - [C] Ohm
 - [D] Watt
 - **Answer: [B] Ampere**

37. **Which law describes the relationship between the current flowing through a conductor and the voltage across it?**
 - [A] Ohm's Law
 - [B] Newton's Law
 - [C] Coulomb's Law
 - [D] Kepler's Law

 - **Answer: [A] Ohm's Law**

38 **Which type of energy is stored in a stretched spring?**
 - [A] Kinetic energy
 - [B] Gravitational potential energy
 - [C] Elastic potential energy
 - [D] Thermal energy

 - **Answer: [C] Elastic potential energy**

39. **What is the SI unit of work and energy?**
 - [A] Joule
 - [B] Newton
 - [C] Watt
 - [D] Kilogram

 - **Answer: [A] Joule**

40. **Which planet in our solar system has the largest number of moons?**
 - [A] Earth
 - [B] Mars
 - [C] Jupiter
 - [D] Saturn

 - **Answer: [C] Jupiter**

41. **What is the phenomenon where light waves change direction as they pass from one medium to another?**
 - [A] Reflection
 - [B] Refraction
 - [C] Diffraction
 - [D] Dispersion

 - **Answer: [B] Refraction**

42 **Which vitamin is essential for blood clotting?**
 - [A] Vitamin A
 - [B] Vitamin C
 - [C] Vitamin D
 - [D] Vitamin K

 - **Answer: [D] Vitamin K**

43**Which disease is caused by deficiency of vitamin C?**
 - [A] Scurvy
 - [B] Rickets
 - [C] Beriberi
 - [D] Pellagra

 - **Answer: [A] Scurvy**

44 **Which gas is responsible for the greenhouse effect on Earth?**
 - [A] Oxygen
 - [B] Nitrogen
 - [C] Carbon dioxide
 - [D] Helium

 - **Answer: [C] Carbon dioxide**



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