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Name two electromagnetic waves of wavelength smaller than that of violet light. - Physics

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प्रश्न

Name two electromagnetic waves of wavelength smaller than that of violet light.

एक पंक्ति में उत्तर
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उत्तर

Gamma rays (y-rays) and X-rays.

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अध्याय 6: Spectrum - EXERCISE - 6 (B) [पृष्ठ १४४]

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सेलिना Physics [English] Class 10 ICSE
अध्याय 6 Spectrum
EXERCISE - 6 (B) | Q 14. (a) | पृष्ठ १४४

संबंधित प्रश्न

The wavelengths for the light of red and blue colours are roughly 7.8 × `10^7` m and 4.8 × `10^7` m respectively.
(a) Which colour has the greater speed in vacuum?
(b) Which colour has the greater speed in glass?


Name the region beyond the violet end of the spectrum called.


Frequencies of Kα X-rays of different materials are measured. Which one of the graphs in the figure may represent the relation between the frequency v and the atomic number ?


Find the cutoff wavelength for the continuous X-rays coming from an X-ray tube operating at 30 kV.

(Use Planck constant h = 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)


Name the scientist who discovered Microwaves 


Name the scientist who discovered Infra-red waves


Two waves A and B have wavelength 0.01 Å and 9000 Å respectively.

Name the two waves. compare the speeds of these waves when they travel in vacuum.


The fundamental frequency of an open organ pipe is 300 Hz. The first overtone of this pipe has same frequency as first overtone of a closed organ pipe. If speed of sound is 330 m/s, then the length of closed organ pipe is:


Give any two uses of infrared waves.


Below is an incomplete table showing the arrangement of electromagnetic spectrum in the increasing order of their wavelength. Complete the table:

Gamma ray X - ray UV rays Visible rays Infrared A Radio waves
  1. Identify the radiation A.
  2. Name the radiation used to detect fracture in bones.
  3. Name one property common to both A and Radio waves.

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