🏫 Board🧲 Physics

Match List-I with List-II : List-I List-II (A) Infra-red rays (I) < 10 –3 nm (B) Ultraviolet rays (II) 400 nm to 100 …

Q1 FREE PREVIEW

Match List-I with List-II :

List-I List-II
(A) Infra-red rays (I) < 10–3 nm
(B) Ultraviolet rays (II) 400 nm to 100 nm
(C) X-rays (III) 1 mm to 700 nm
(D) Gamma rays (IV) 1 nm to 10–3 nm

Choose the correct answer from the options give below:

a

\((\mathrm{A})-(\mathrm{I}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{IV})\)

b

\((\mathrm{A})-(\mathrm{IV}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})\)

c

\((\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{I})\)

d

\((\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{I}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{III})\)

✓ Correct answer: c)

\((\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{IV}),(\mathrm{D})-(\mathrm{I})\)

Explanation

Infrared is the least energetic thus having biggest wavelength (\(\lambda\)) & gamma rays are most energetic thus having smallest wavelength (\(\lambda\)).

Practice more Board Physics PYQs

See every question on Electromagnetic Waves, or browse the full Board question bank.

See all questions on Electromagnetic Waves →