enEnglishguગુજરાતી
JEE Mains · Physics · STD 12 - Electromagnetic waves
- JEE Mains 2023
- Medium
- MCQ
Match List \(- I\) with List \(- II\)
| List\(-I\) (Layer of atmosphere) | List\(-II\) (Approximate height over earth's surface) |
| \((A)\) \(F_1\) - Layer | \((I)\) \(10\,km\) |
| \((B)\) \(D-\) Layer | \((II)\) \(170-190\,km\) |
| \((C)\) Troposphere | \((III)\) \(100\,km\) |
| \((D)\) \(E-\)layer | \((IV)\) \(65-75\,km\) |
Pick an option to check your answer.
Answer & Solution
Correct Answer
(D) \((A)-(II), (B)-(IV), (C)-(I), (D)-(III)\)
Step-by-step Solution
Detailed explanation
Based on theory
More questions from Physics
- In an adiabatic process, the density of a diatomic gas becomes \(32\) times its initial value. The final pressure of the gas is found to be \(n\) times the initial pressure. The value of \(n\) isJEE Mains 2020 Medium
- The radius of curvature for a thin convex lens are 10 cm and 15 cm respectively. The focal length of the lens is 12 cm. The refractive index of the lens material is :JEE Mains 2025 Easy
- A force \(\overrightarrow{ F }=(\hat{ i }+2 \hat{ j }+3 \hat{ k }) N\) acts at a point \((4 \hat{ i }+3 \hat{ j }-\hat{ k }) m \cdot\) Then the magnitude of torque about the point \((\hat{i}+2 \hat{j}+\hat{k}) m\) will be \(\sqrt{ x } N - m .\) The value of \(x\) is\(........\)JEE Mains 2020 Medium
- The current \((i)\) at time \(t =0\) and \(t =\infty\) respectively for the given circuit is
JEE Mains 2021 Hard - In a Young's double slit experiment, light of \(500\, nm\) is used to produce an interference pattern. When the distance between the slits is \(0.05\, mm\), the angular width (in degree) of the fringes formed on the distance screen is close to\(........^o\)JEE Mains 2020 Medium
- Using a variable-frequency a.c. voltage source, the maximum current measured in the given LCR circuit is 50 mA for \(V =5 \sin (100 t )\). The values of L and \(R\) are shown in the figure. The capacitance of the capacitor \(( C )\) used is ___________ \(\mu F\).
JEE Mains 2026 Hard
More PYQs from JEE Mains
- In the given figure, a battery of emf \(E\) is connnected across a conductor \(P Q\) of length \('Y'\) and different area of cross-sections having radii \(r_{1}\) and \(r_{2}\left(r_{2}\,<\,r_{1}\right)\). Choose the correct option as one moves from \(P\) to \(Q\) :
JEE Mains 2021 Hard - An object is placed beyond the centre of curvature \({C}\) of the given concave mirror. If the distance of the object is \({d}_{1}\) from \({C}\) and the distance of the image formed is \({d}_{2}\) from \({C}\), the radius of curvature of this mirror isJEE Mains 2021 Hard
- The pressure acting on a submarine is \(3 \times 10^{5}\;Pa\) at a certain depth. If the depth is doubled, the percentage increase in the pressure acting on the submarine would be: (Assume that atmospheric pressure is \(1 \times 10^{5} \;Pa\) density of water is \(10^{3}\, kg \,m ^{-3}, g =10 \,ms ^{-2}\) )JEE Mains 2021 Medium