NSMQ

NSMQ 2026 Physics Speed Race

Find the threshold frequency for a photocathode of work function 1.9 eV.

How high above its launch point does a 5.0 kg object rise when it is projected at π/6 radians to the horizontal with speed 72 m/s?

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Give the dimension of a physical quantity equivalent to the product of force and reciprocal volume.

Question 4

A 6.0 kg object of specific heat capacity 0.45 kJ/(kg K) absorbs 16 kJ of heat. Find its final temperature if its initial temperature is 25 °C.

Question 5

Find the work done by friction on a 1 kg object sliding 2 m down from rest against the vertical shaft if its speed at the end is 4 m/s.

Question 6

Find the kinetic energy of a 0.8 kg object whose velocity is (2i − j) m/s.

Question 7

Find the period of a simple pendulum of length 5/2 m on the surface of a celestial body of surface gravity 8/5 m/s².

Question 8

Determine the threshold wavelength for the photoelectric effect in a photocathode of work function 1.5 eV.

Question 9

Find the magnitude of the magnetic force on a particle of charge 3.2 × 10⁻¹⁹ C moving at 5.0 × 10⁴ m/s perpendicular to a 0.20 T magnetic field.

Question 10

Find the equivalent capacitance of a parallel combination of 2 mF, 3 mF and 4 mF capacitors.

Question 11

Find the speed of a particle of velocity (12i − 9j) m/s.

Question 12

Determine the impedance of an RC circuit with R = 12 Ω and C = 0.050 F at an angular frequency of 4.0 rad/s.

Question 13

Identify, if any, the wavelength that is visible to the unaided eye among these electromagnetic wavelengths, 55 nm, 550 nm and 5500 nm.

Question 14

Find the activity of 5.0 × 10⁵ nuclei of a radionuclide of half-life 1.0 s.

Question 15

Find the tension in a stretched string of linear density 3.00 × 10⁻⁴ kg/m if the speed of transverse waves on it is 425 m/s.

Question 16

Find the surface potential of a conducting sphere of radius 27 cm and net charge −4.0 μC.

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Find the speed of a 4.0 kg object at which its kinetic energy is 18 J.

Question 18

Find the equivalent inductance of two parallel inductors, each of inductance 8 μH.

Question 19

Find the kinetic energy of a 4.00 kg particle moving at 25.0 m/s.

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Name the phenomenon in which an object emits electrons when heated.

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Find the flight time of a particle projected vertically upward at 1 × 10³ cm/s from level ground.

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