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Indian National Physics Olympiad (INPhO)

The Indian National Physics Olympiad (INPhO) is a national level physics competition for high school students in India. It is held annually and is organized by the Homi Bhabha Centre for Science Education (HBCSE). The competition is open to students who are in Class 11 or Class 12 and have a strong interest in physics. The INPhO is a three-tier competition, with the first tier being a written exam held at the state level. The top students from each state are then invited to participate in the second tier, which is a written exam held at the national level. The top students from the second tier are then invited to participate in the third tier, which is a practical exam held at the national level. The winners of the INPhO are awarded medals and certificates, and they are also eligible to represent India at the International Physics Olympiad (IPhO).

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following is not a fundamental force in physics?

  1. Gravitational force
  2. Electromagnetic force
  3. Strong nuclear force
  4. Weak nuclear force
  5. Centripetal force
Question 2 Multiple Choice (Single Answer)

What is the SI unit of mass?

  1. Kilogram
  2. Gram
  3. Pound
  4. Ounce
  5. Carat
Question 3 Multiple Choice (Single Answer)

What is the formula for the centripetal force acting on an object moving in a circular path?

  1. $$F_c = mv^2/r$$
  2. $$F_c = mv^2r$$
  3. $$F_c = mr^2v$$
  4. $$F_c = mv/r$$
  5. $$F_c = mvr$$
Question 4 Multiple Choice (Single Answer)

What is the SI unit of length?

  1. Meter
  2. Centimeter
  3. Inch
  4. Foot
  5. Yard
Question 5 Multiple Choice (Single Answer)

What is the formula for the gravitational force between two objects?

  1. $$F_g = Gm_1m_2/r^2$$
  2. $$F_g = Gm_1m_2r^2$$
  3. $$F_g = Gm_1/r^2$$
  4. $$F_g = Gm_2/r^2$$
  5. $$F_g = Gm_1m_2r$$
Question 6 Multiple Choice (Single Answer)

What is the SI unit of time?

  1. Second
  2. Minute
  3. Hour
  4. Day
  5. Year
Question 7 Multiple Choice (Single Answer)

What is the formula for the kinetic energy of an object?

  1. $$K = mv^2/2$$
  2. $$K = mv^2$$
  3. $$K = m^2v$$
  4. $$K = mv/2$$
  5. $$K = mvr$$
Question 8 Multiple Choice (Single Answer)

What is the SI unit of electric charge?

  1. Coulomb
  2. Ampere
  3. Volt
  4. Ohm
  5. Farad
Question 9 Multiple Choice (Single Answer)

What is the formula for the electric force between two charges?

  1. $$F_e = kq_1q_2/r^2$$
  2. $$F_e = kq_1q_2r^2$$
  3. $$F_e = kq_1/r^2$$
  4. $$F_e = kq_2/r^2$$
  5. $$F_e = kq_1q_2r$$
Question 10 Multiple Choice (Single Answer)

What is the SI unit of electric potential?

  1. Volt
  2. Ampere
  3. Coulomb
  4. Ohm
  5. Farad
Question 11 Multiple Choice (Single Answer)

What is the formula for the electric potential at a point due to a point charge?

  1. $$V = kq/r$$
  2. $$V = kq^2/r$$
  3. $$V = kq/r^2$$
  4. $$V = kq^2/r^2$$
  5. $$V = kqr$$
Question 12 Multiple Choice (Single Answer)

What is the SI unit of electric current?

  1. Ampere
  2. Volt
  3. Coulomb
  4. Ohm
  5. Farad
Question 13 Multiple Choice (Single Answer)

What is the formula for the electric current in a circuit?

  1. $$I = V/R$$
  2. $$I = VR$$
  3. $$I = V^2/R$$
  4. $$I = V/R^2$$
  5. $$I = VR^2$$
Question 14 Multiple Choice (Single Answer)

What is the SI unit of resistance?

  1. Ohm
  2. Ampere
  3. Volt
  4. Coulomb
  5. Farad
Question 15 Multiple Choice (Single Answer)

What is the formula for the resistance of a conductor?

  1. $$R = ho l/A$$
  2. $$R = ho lA$$
  3. $$R = ho/lA$$
  4. $$R = ho l^2/A$$
  5. $$R = ho A/l$$
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