2025 · Official Pondicherry Government Exam Paper
Q1.What is the de Broglie wavelength associated with an electron moving with a speed of 5.4×10⁶ m/s? Given mass of electron is 9.11×10⁻³¹ kg, Planck's constant h = 6.63×10⁻³⁴ Js.
Q2.What is the energy equivalent of 1 gram of substance?
Q3.A tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magnitude of the magnetic field at the centre of the coil?
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