enEnglishguગુજરાતી
JEE Mains · Physics · STD 12 - 9. Ray optics and optical instruments
A prism of angle \(A=1^{\circ}\) has a refractive index \(\mu=1.5 .\) A good estimate for the minimum angle of deviation (in degrees) is close to \(N/10\) Value of \(N\) is......
- A \(5\)
- B \(8\)
- C \(10\)
- D \(15\)
Answer & Solution
Correct Answer
(A) \(5\)
Step-by-step Solution
Detailed explanation
\(\delta_{\min }=(\mu-1) A\) \(=(1.5-1) 1\) \(=0.5\) \(\delta_{\min }=\frac{5}{10}\) \(N=5\)
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
- Given below are two statements: Statement \(I :\) Pressure in a reservoir of water is same at all points at the same level of water. Statement \(II :\) The pressure applied to enclosed water is transmitted in all directions equally. In the light of the above statements, choose the correct answer from the options given below:JEE Mains 2023 Medium
- A loop of flexible wire of irregular shape carrying current is placed in an external magnetic field. Identify the effect of the field on the wire.JEE Mains 2021 Medium
- Two resistors \(2 \Omega\) and \(3 \Omega\) are connected in the gaps of bridge as shown in figure. The null point is obtained with the contact of jockey at some point on wire XY . When an unknown resistor is connected in parallel with \(3 \Omega\) resistor, the null point is shifted by 22.5 cm toward Y . The resistance of unknown resistor is _________ \(\Omega\).
JEE Mains 2026 Medium - When a car is at rest, its driver sees rain drops falling on it vertically. When driving the car with speed \(v,\) he sees that rain drops are coming at an angle \(60^{\circ}\) from the horizontal. On further increasing the speed of the car to \((1+\beta) v ,\) this angle changes to \(45^{\circ} .\) The value of \(\beta\) is close to\(......\)JEE Mains 2020 Hard
- Two resistors \(400\, \Omega\) and \(800\, \Omega\) are connected in series across a \(6 V\) battery. The potential difference measured by a voltmeter of \(10\, k \Omega\) across \(400\, \Omega\) resistor is close to\(....V\)JEE Mains 2020 Medium
- The deflection in moving coil galvanometer falls from \(25\) divisions to \(5\) division when a shunt of \(24\ \Omega\) is applied. The resistance of galvanometer coil will be :JEE Mains 2024 Hard
More PYQs from JEE Mains
- A plane progressive wave is given by \(y=2 \cos 2 \pi(330 t-x) m\). The frequency of the wave is _______.JEE Mains 2024 Hard
- A metal plate of area \(1\times10^{-4}\, m^2\) is illuminated by a radiation of intensity \(16\, m\,W/m^2\). The work function of the metal is \(5\,eV\). The energy of the incident photons is \(10\, eV\) and only \(10\%\) of it produces photo electrons. The number of emitted photo electrons per second and their maximum energy, respectively, will be : \([1\, eV = 1.6\times10^{-19}\, J]\)JEE Mains 2019 Hard
- The total number of positive integral solutions \(( x , y , z )\) such that \(xyz =24\) isJEE Mains 2021 Hard
- The remainder on dividing \(5^{99}\) by \(11\) isJEE Mains 2023 Hard
- Figure represents the extension (\(\Delta l\)) of a wire of length \(1\) meter, suspended from the ceiling of the room at one end with a load \(W\) connected to the other end. If the cross-sectional area of the wire is \(10^{-5}\) m\(^2\) then the Young's modulus of the wire is __________ N/m\(^2\).
JEE Mains 2026 Medium - Let \(A\) be the point \((1,2)\) and \(B\) be any point on the curve \(x^2+y^2=16\). If the centre of the locus of the point \(P\), which divides the line segment \(A B\) in the ratio \(3: 2\) is the point \(C(\alpha, \beta)\), then the length of the line segment \(AC\) isJEE Mains 2023 Hard