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To find the wavelength of the light in glass, we can use the formula:wavelength = velocity of light in vacuum / (refractive index * frequency)Given that the frequency is 1014 Hz, we can substitute the values into the formula:wavelength = (3 x 10^8 m/s) / (1.5 * 1014 Hz)Simplifying the expression, we get:wavelength = (3 x 10^8 m/s) / (1.5 x 10 ...
The momentum of the electron is equal to its mass multiplied by the speed of light. Since the mass of an electron is constant, the speed of the electron must be equal to the speed of light: v = c Therefore, the speed of the electron is c, which is the speed of light.
Given information:Velocity of wave = Velocity of light = cPhase constant = 20 unitsFormula used:Frequency of wave = (2π/λ) * Velocity of waveWhere,λ = wavelength of waveCalculation:As per the formula, we know thatwavelength of wave = 2π/phase constant= 2π/20= π/10Now,Frequency of wave = (2π/λ) * Velocity of wave= (2π/(π/10)) * c= 20c rad/secTo convert rad/sec to GHz, we know that1 ...
√(μ0ε0)This equation is known as the electromagnetic wave equation and it relates the speed of light (C) to the permeability of free space (μ0) and the permittivity of free space (ε0). These two constants are fundamental properties of the universe and play a crucial role in the propagation of electromagnetic waves.
To calculate the maximum velocity of the ball, we need to analyze the system's energy transformations.Key Parameters- **Spring Length:** 20 cm- **Force Constant (k):** 2 kg/cmPotential Energy of the Spring- The potential energy stored in a compressed or stretched spring is given by the formula: **PE = (1/2) k x²** where \( x \) is the displacement from the spring's natural length.Finding the ...
Assertion and Reasoning:Assertion: Danger signals are made of red colour.Reasoning: Velocity of red light in air is maximum, so signals are visible even in dark.Explanation:• The assertion is true because danger signals are mostly made of red colour. It is a universal fact.• The reasoning given to support the assertion is not entirely correct.
Download the App. Phase velocity and Group velocity Phase velocity: The velocity with which a wave travels is called Phase velocity or wave velocity. It is denoted by v p. It is given by. Where c = velocity of light and v = is velocity of the particle. The above equation gives the relationship between the phase velocity and particle velocity.
where v is the velocity of the rod and c is the speed of light. In this case, v = 0.8c, so: % contraction = sqrt(1 - (0.8c)^2/c^2) * 100 % contraction = sqrt(1 - 0.64) * 100 % contraction = 45.56% Therefore, the rod will contract by approximately 45.56% when moving with a velocity of 0.8c in a direction inclined at 60 degrees to its length.
Attempt Assertion and Reason Test: Light- Reflection and Refraction - 1 - 15 questions in 30 minutes - Mock test for Class 10 preparation - Free important questions MCQ to study for Class 10 Exam - Download free PDF with solutions
The other properties of light, such as wavelength, frequency, and amplitude, remain the same.Explanation:- Velocity of light: The speed of light changes when it enters a different medium, such as glass. In air, the speed of light is approximately 3 x 10^8 meters per second.
