Advertisements
Advertisements
प्रश्न
The wavelength of X-rays is 0.01 Å. Calculate its frequency. State the assumption made, if any.
Calculate the frequency of X-rays having a wavelength of 0.01 Å.
Advertisements
उत्तर
1. Wavelength of X-rays: λ = 0.01 Å
= `1/100 xx 10^-10` m
λ = 10-12 m
2. Assumption made is speed of X-rays = Speed of light = 3 × 108 m
C = f λ
f = `C/ λ`
= `(3 xx 10^8)/(10^-12)`
= `3 xx 10^(8+12)`
= 3 × 1020 Hz
संबंधित प्रश्न
Name the region beyond the red end of the spectrum.
Characteristic X-rays may be used to identify the element from which they are being emitted. Can continuous X-rays be used for this purpose?
The figure shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes. The solid curve represents the relation for the tube A in which the potential difference between the target and the filament is VA and the atomic number of the target material is ZA. These quantities are VB and ZB for the other tube. Then,
Find the energy, the frequency and the momentum of an X-ray photon of wavelength 0.10 nm.
(Use Planck constant h = 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
If the operating potential in an X-ray tube is increased by 1%, by what percentage does the cutoff wavelength decrease?
(Use Planck constant h = 6.63 × 10-34 Js= 4.14 × 10-15 eVs, speed of light c = 3 × 108 m/s.)
How will you investigate the existence of the radiation beyond the red and violet extremes of the spectrum?
What are the ultraviolet rays?
Microwaves are electromagnetic waves with frequency in the range of.
What is time period of the light for which the eye is most sensitive?
Why does microwave oven heats up a food item containing water molecules most efficiently?
