AP EAMCET · PHYSICS · Atomic Physics
The ratio of minimum wave length of Balmer series to maximum wavelength in Brackett series in hydrogen spectrum is
- A 25:16
- B 4:36
- C 9:100
- D 100:9
Answer & Solution
Correct Answer
(C) 9:100
Step-by-step Solution
Detailed explanation
For hydrogen atom, \(\frac{1}{\lambda}=\mathrm{R}\left(\frac{1}{\mathrm{n}_1^2}-\frac{1}{\mathrm{n}_2^2}\right)\) For Balmer series, \(\mathrm{n}_1=2, \mathrm{n}_2=3,4,5, \ldots . \infty\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- A particle of mass , moving with a velocity makes an elastic collision in one dimension with a stationary particle of mass . During the collision, they remain in contact with each other for an extremely small time : Their force of contact, with time is shown in the figure. Then
AP EAMCET 2021 Hard - In a hydraulic lift, compressed air exerts a force on a small piston of radius . Due to this pressure the second piston of radius lifts a load of . The value of is
(Acceleration due to gravity )AP EAMCET 2022 Easy - A wire of \(20 \Omega\) is immersed in ice. If \(10 \mathrm{~A}\) current is passed through this wire for 1 minute, ice completely melts. The mass of the ice is nearly \(\left(L_{\text {ice }}=79.7 \mathrm{calg}^{-1}\right)\)AP EAMCET 2018 Easy
- An object moving along -axis with a uniform acceleration has velocity at . After if it is at , then its acceleration is,AP EAMCET 2022 Medium
- The uniform electric field intensity between the two plates of a parallel plate capacitor is \(1 \times 103 \mathrm{Vm}^{-1}\) acting vertically upwards as shown in the figure.

The plates are sufficiently long and have separation \(2 \mathrm{~cm}\). A particle of negative charge \(1 \mu \mathrm{C}\) and mass \(2 \mathrm{~g}\) is projected at an angle \(45^{\circ}\) with the electric field from the lower plate with a velocity ' \(u\) '. The maximum velocity acquired by the particle, if it is not hit the upper plate isAP EAMCET 2017 Hard - There is some change in length when a \(33000 \mathrm{~N}\) tensile force is applied on a steel rod of area of cross-section \(10^{-3} \mathrm{~m}^2\). The change of temperature required to produce the same elongation, if the steel rod is heated, is (The modulus of elasticity is \(3 \times 10^{11} \mathrm{~N} / \mathrm{m}^2\) and the coefficient of linear expansion of steel is \(\left.1.1 \times 10^{-5} /{ }^{\circ} \mathrm{C}\right)\).AP EAMCET 2008 Medium
More PYQs from AP EAMCET
- The flow rate of water from a tap of diameter \(1.25 \mathrm{~cm}\) is 3 litres per min. If coefficient of viscosity of water is \(10^{-3} \mathrm{~Pa}-\mathrm{s}\). the nature of flow isAP EAMCET 2021 Medium
- From a group of 10 men and 8 women, the number of ways of forming a committee of 8 members with not more than 5 men and not less than 5 women isAP EAMCET 2018 Medium
- In a triangle, if the angles are in the ratio \(3: 2: 1\), then the ratio of its sides isAP EAMCET 2024 Easy
- The total maximum number of electrons possible in \(3 \mathrm{~d}, 6 \mathrm{~d}, 5 \mathrm{~s}\) and 4 f orbitals with \(\mathrm{m}_l\) (magnetic quantum number) value -2 isAP EAMCET 2025 Medium
- Let \(\overrightarrow{\mathrm{a}}=\hat{\mathrm{i}}+2 \hat{\mathrm{j}}+3 \hat{\mathrm{k}}\) and \(\overrightarrow{\mathrm{b}}=\hat{\mathrm{i}}-2 \hat{\mathrm{j}}-3 \hat{\mathrm{k}}\) be two vectors. If \(A_1\) is the area of the quadrilateral having \(\vec{a}, \vec{b}\) as its diagonals and \(A_2\) is the area of the parallelogram having \(\overrightarrow{\mathrm{a}}, \overrightarrow{\mathrm{b}}\) as its two adjacent sides, then \(\mathrm{A}_1 \cdot \mathrm{A}_2=\)AP EAMCET 2023 Easy
- Acid rain is caused by the presence of \(X\) and \(Y\) in air. \(X, Y\) are respectivelyAP EAMCET 2019 Easy