Chapter 16 – Waves

A ray of light having wavelength 720 nm enters in a glass of refractive index 1 × 5. The wavelength of the ray within the glass will be A ray of light having wavelength 720 nm enters in a glass of refractive index 1 × 5. The wavelength of the ray within the glass will [...]

Two lenses of power + 12 D and -2 D are combined together. What is their equivalent focal length ? Two lenses of power + 12 D and -2 D are combined together. What is their equivalent focal length ? October 23, 2020 Category: AIIMS Last 24 Years Solved 1996 - 2019 Physics and Chemistry [...]

The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it, the deviation will be : The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it the deviation will be [...]

The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it, the deviation will be : The angle of a prism is 6^∘ and its refractive index for green light is 1.5. If a green ray passes through it the deviation will be [...]

A resonance in air column of length 20cm resonates with a tuning fork of frequency 450Hz. Ignoring end correction, the velocity of sound in air will be A resonance in air column of length 20cm resonates with a tuning fork of frequency 450Hz. Ignoring end correction the velocity of sound in air will be September [...]

Standing waves are produced in 10 m long stretched string. If the string vibrates in 5 segments and wave velocity 20 m/s then the frequency is :- Standing waves are produced in 10 m long stretched string. If the string vibrates in 5 segments and wave velocity 20 m/s then the frequency is :- September [...]

A closed organ pipe and an open organ pipe of the same length produce four beats, when sounded together. If the length of the closed organ pipe is increased, then the number of beats will A closed organ pipe and an open organ pipe of the same length produce four beats then the number of [...]

An observer standing by the side of a road hears the siren of an ambulance, which is moving away from him. If the actual frequency of the siren is 2,000 Hz​, then the frequency heard by the observer will be 000 Hz​ An observer standing by the side of a road hears the siren of [...]

The equation of a wave is y = 10 sin (2πt/45 + alpha). if the displacement is 5 centimeter at t = 0 what is the total phase at t = 7.5 second The equation of a wave is y = 10 sin (2πt/45 + alpha). if the displacement is 5 centimeter at t = [...]

If at same temperature and pressure the densities for two diatomic gases are d1​ and d2​ respectively, then the ratio of velocities of sound in these gases will be If at same temperature and pressure the densities for two diatomic gases are d1​ and d2​ respectively then the ratio of velocities of sound in these [...]