What is the primary purpose of thematic maps?

Important Questions on Relations and Functions

MEDIUM

Mathematics>Algebra>Relations and Functions>Composition of Functions

The electron in a hydrogen atom passes from $n=4$ energy level to $n=1$ energy level. What is the maximum number of photons that can be emitted?

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

The ratio of wavelengths of the last line of the Balmer series and the last line of the Lyman series is_____.

HARD

Mathematics>Algebra>Relations and Functions>Composition of Functions

Explain the different types of spectral series.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Name the electromagnetic radiations used for (a) water purification, and (b) eye surgery.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

List any two applications of DNA fingerprinting technique.

MEDIUM

Mathematics>Algebra>Relations and Functions>Composition of Functions

The waves used by artificial satellites for communication purposes are

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

An electron from various excited states of hydrogen atom emit radiation to come to the ground state. Let ${\lambda }_n, {\lambda }_g$ be the de Broglie wavelength of the electron in the $n^{th}$ state and the ground state respectively. Let ${\wedge }_n$ be the wavelength of the emitted photon in the transition from the $n^{th}$ state to the ground state. For large n, (A, B are constants)

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Identify the part of the electromagnetic spectrum used in $\left(\mathrm{i}\right)$ radar and $\left(\mathrm{ii}\right)$ eye surgery. Write their frequency range.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Expand VNTR and describe its role in DNA fingerprinting.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Given the value of Rydberg constant is ${10}^7\mathrm{ }{\mathrm{m}}^{-1}$, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

MEDIUM

Mathematics>Algebra>Relations and Functions>Composition of Functions

Which mode of propagation is used by short wave broadcast services ?

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

If $\mathrm{f}\left(x\right)=x+1$, find $\frac{\mathrm{d}}{\mathrm{d}x}\left(\text{ fof}\right)\left(x\right)$.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Name the electromagnetic radiations used for eye surgery.

MEDIUM

Mathematics>Algebra>Relations and Functions>Composition of Functions

Explain the mechanism of translation that occurs in the ribosomes in a prokaryote.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Why are infra-red waves often called heat waves ? Explain.

MEDIUM

Mathematics>Algebra>Relations and Functions>Composition of Functions

Write down one use of X-ray.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

In Balmer series for hydrogen atom, find the energy of photon corresponding to longest wavelength.

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Which of the following is not required for any of the techniques of DNA fingerprinting available at present?

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

For $x ϵ (0,\frac{3}{2}),$ let $f\left(x\right)=\sqrt{x},g\left(x\right)=\mathrm{t}\mathrm{a}\mathrm{n}x$ and $h\left(x\right)=\frac{1-x^2}{1+x^2}$ . If $\mathrm{\varphi }\left(x\right)=\left(\mathrm{h}\mathrm{o}f\right)\mathrm{o}\mathrm{g}\left)\right(x),$ then $\mathrm{\varphi }\mathrm{ }\left(\frac{\pi }{3}\right)$ is equal to:

EASY

Mathematics>Algebra>Relations and Functions>Composition of Functions

Find $gof$ and $fog$ when $f:R\to R$ and $g:R\to R$ is defined by $f\left(x\right)=x^2+2x+3$ and $g\left(x\right)=3x-4$.