Momentum and Radiation Pressure

JEE Main Physics · Electromagnetic Waves · 9 questions, latest first

• Given below are two statements: one is labelled as Assertion and the other is labelled as Reason (R). Assertion: The…20265 April, Shift 2 · Q39
• A small mirror of mass m is suspended by a massless thread of length l. Then the small angle through which the thread will be…20254 April, Shift 1 · Q40
• The radiation pressure exerted by a 450 W light source on a perfectly reflecting surface placed at 2 m away from it, is20253 April, Shift 1 · Q40
• Given below are two statements: one is labelled as Assertion and the other is labelled as Reason (R). Assertion: Electromagnetic…202529 January, Shift 1 · Q40
• Average force exerted on a non-reflecting surface at normal incidence is 2.4 × 10^-4 N. If 360 W / cm^2 is the light energy flux…20248 April, Shift 1 · Q42
• If the total energy transferred to a surface in time t is 6.48 × 10^5 J, then the magnitude of the total momentum delivered to…202430 January, Shift 2 · Q44
• An object is placed in a medium of refractive index 3. An electromagnetic wave of intensity 6 × 10^8 W / m^2 falls normally on…202427 January, Shift 2 · Q44
• A small object at rest, absorbs a light pulse of power 20 mW and duration 300 ns. Assuming speed of light as 3 × 10^8 m / s, the…202330 January, Shift 1 · Q15
• A point source of light is placed at the centre of curvature of a hemispherical surface. The source emits a power of 24 W. The…202330 January, Shift 1 · Q23