Related Questions

Which of the following has a least penetrating power?
A All have same penetrating power
B Beta Particles
C Alpha particles
D Gamma rays
Which, of the following radiations has the least wavelength ?
A X-rays
B A-rays
C G-rays
D B-rays
Which of the following rays are the most penetrating?
A Beta rays
B Alpha rays
C Gamma rays
D X-rays
Which type of radiation has the lowest penetrating ability?
A Alpha
B Beta
C Gamma
D All of the above
For Gamma radiation, what stops its penetrating abilities?
A Lead
B Steal
C Concrete
D All of the above
নিচের কোন তড়িৎ-চুম্বকীয় বিকিরণের কম্পাঙ্ক সবচেয়ে কম?(which of the following electromagnetic radiations has the lowest frequency?)
A গামা (Gamma)
B অবালোহিত (Infrared)
C অতিবেগুনী (Ultraviolet)
D এক্স-রে (X-Ray)
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as lUV, lVIS and lIR respectively, then which of the following gives the correct relationship among these wavelengths?
A lUV < lIR < lVIS
B lUV > lVIS > lIR
C lUV > lIR > lVIS
D lUV < lVIS < lIR
Consider the electromagnetic radiations having wavelengths 200 nm, 500 nm and 1000 nm. Which wavelength (s) of the following can make visual sensation to a human eye?
A 200 nm and 500 nm
B 500 nm and 1000 nm
C 500 nm only
D 200 nm and 1000 nm
Which of the following is generally considered as opaque surface towards radiations?
A Gases
B Solids
C Liquids
D Both B and C
The Laser is a beam of radiations which are
A Non-coherent and monochromatic
B Coherent and monochromatic
C Non-coherent and non-monochromatic
D Coherent and non-monochromatic

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