If the wavelength of the wave is 24 cm, then the distance between the first compression and the third subsequent rarefaction in a longitudinal wave is ____ cm
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A sheet of cellophane acts as a half-wave plate for light of wavelength 4000Å. If the index of refraction did not change with wavelength, how would th
Correct Answer - It will behaves as a quarter-wave plate
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If the wavelength of the first member of Balmer series in hydrogen spectrum is 6563 Å, calculate the wavelength of the first member of Lymen series in
Correct Answer - 1215.14 Å
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The distance between two slits in a YDSE apparatus is 3mm. The distance of the screen from the slits is 1m. Microwaves of wavelength 1 mm are incident
Correct Answer - [35.35cm app.,5]
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Given are there numbers. If the second and the third numbers respectively are `20%` and `50%` more than the third number, then what percentage is the
Correct Answer - `120%`
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The area of a triangle is 5. Two of its vertices are `(2, 1)` and `(3, -2)` . The third vertex lies on `y=x+3` . Find the third vertex.
Correct Answer - `(7/2,13/2)` or `(-3/2,3/2)`
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Define a longitudinal wave.
A wave in which particles of medium vibrate in a direction parallel to the direction of propagation of the wave is called longitudinal wave. Example : Sound waves.
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A man travels two-third part of his total distance with speed `v_(1)` and rest one-third part with speed `v_(2)`. Find out the average speed of the ma
Correct Answer - `(3v_(1)v_(2))/(v_(2)+2v_(1))
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If the distance between Sun and Earth is made two third times of the present value, then gravitational force between them will become
Correct option is: (D) \(\frac{9}{4}\) times Gravitational Force \(F = \frac{G \ m_1m_2}{r^2}\) \(\frac{F_2}{F_1} = \left(\frac{r_1}{r_2}\right)^2\) \(\frac{F_2}{F_1} = \left(\frac{r_1}{\frac{2}{3}r_1}\right)^2\) \(\frac{F_2}{F_1} = \frac{9}{4}\) \(\implies F_2 = \frac{9}{4} \ F_1\)
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If the distance between Sun and Earth is made two third times of the present value, then gravitational force between them will become
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In the examples given below, state if the wave motion is transverse, longitudinal or a combination of both?
1. Light waves (from Sun to Earth) are electromagnetic waves which are transverse in nature. 2. Ultrasonic waves in air are basically sound waves of frequency greater than the audible frequencies....
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