Part 1
Two sources of light are said to be coherent if the waves produced by them have the same
17
Nov
Two sources of light are said to be coherent if the waves produced by them have the same Two sources of light are said to be coherent if the waves produced by them have the same November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a [...]
The velocity of light in diamond, glass and water decreases in the following order
17
Nov
The velocity of light in diamond, glass and water decreases in the following order glass and water decreases in the following order The velocity of light in diamond November 17, 2020 Category: Cengage NEET by C.P Singh , Chapter 16 - Wave Motion and Waves on a String , Part 1 ,
The (x – t) graph of a particle undergoing simple harmonic motion is shown below. The acceleration of the particle at t=4/3 s is
05
Nov
The (x – t) graph of a particle undergoing simple harmonic motion is shown below. The acceleration of the particle at t=4/3 s is A particle executes SHM with a time period of 16s. At time t=2s its velocity is 4 ms^−1. The amplitude of motion in metre is? the particle crosses the mean position [...]
Time period of is simple pendulum of length L is T1 and the point time period of a uniform rod of the same length L pivotal about one end and oscillating in vertical plane is T2. Amplitude of oscillation in both the cased is small. The T1/T2 is:-duplicate-1
05
Nov
Time period of is simple pendulum of length L is T1 and the point time period of a uniform rod of the same length L pivotal about one end and oscillating in vertical plane is T2. Amplitude of oscillation in both the cased is small. The T1/T2 is:-duplicate-1 then the minimum time after which they [...]
The frequency of a radar is 780 MHz. After getting reflected from an approaching aeroplane, the apparent frequency is more than the actual frequency by 2.6 kHz. The aeroplane has a speed of
31
Oct
The frequency of a radar is 780 MHz. After getting reflected from an approaching aeroplane, the apparent frequency is more than the actual frequency by 2.6 kHz. The aeroplane has a speed of the apparent frequency is more than the actual frequency by 2.6 kHz. The aeroplane has a speed of The frequency of a [...]
The apparent wavelength of the light from a star, moving away from the earth is 0.01% more than its real wavelength. The speed of the star with respect to earth is
31
Oct
The apparent wavelength of the light from a star, moving away from the earth is 0.01% more than its real wavelength. The speed of the star with respect to earth is moving away from the earth is 0.01% more than its real wavelength. The speed of the star with respect to earth is The apparent [...]
A sound wave of frequency f travels horizontally to the right. It is reflected from a large vertical plane surface moving to left with a speed v. The speed of sound in medium is C, then
31
Oct
A sound wave of frequency f travels horizontally to the right. It is reflected from a large vertical plane surface moving to left with a speed v. The speed of sound in medium is C, then A sound wave of frequency f travels horizontally to the right. It is reflected from a large vertical plane [...]
A band playing music at a frequency f is moving towards a wall at a speed vb. A motorist is following the band with a speed vm. If v is the speed of sound, obtain an expression for the beat frequency heard by the motorist is
31
Oct
A band playing music at a frequency f is moving towards a wall at a speed vb. A motorist is following the band with a speed vm. If v is the speed of sound, obtain an expression for the beat frequency heard by the motorist is A band playing music at a frequency f is [...]
Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72kmh and 36kmh. If second car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of first car when the line joining the cars makes angle of 45^∘C with the roads, will be (velocity of sound is 330 m/s)
31
Oct
Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72kmh and 36kmh. If second car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of first car when the line joining the cars makes angle of 45^∘C with the roads, will be (velocity [...]
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then the frequency of horn heard by the driver of first car when the line joining the cars makes angle of 45^∘C with the roads ,
Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72kmh and 36kmh. If second car blows horn of frequency 280 Hz ,
will be (velocity of sound is 330 m/s) ,
A racing car moving towards a cliff, sounds its horn. The driver observes that the sound reflected from the cliff has a pitch one octave higher than the actual sound of the horn. If v is the velocity of sound, then the velocity of the car is
31
Oct
A racing car moving towards a cliff, sounds its horn. The driver observes that the sound reflected from the cliff has a pitch one octave higher than the actual sound of the horn. If v is the velocity of sound, then the velocity of the car is A racing car moving towards a cliff sounds [...]