JEE Mains · Physics · STD 11- 8. mechanical properties of solids
Given below are two statements: one is labelled as Assertion\((A)\) and the other is labelled as Reason \((R).\) \(Assertion\) \((A)\) : In Vernier calliper if positive zero error exists, then while taking measurements, the reading taken will be more than the actual reading. \(Reason\) \((R)\) : The zero error in Vernier Calliper might have happened due to manufacturing defect or due to rough handling. In the light of the above statements, choose the correct answer from the options given below :
- A Both \((A)\) and \((R)\) are correct and \((R)\) is the correct explanation of \((A)\)
- B Both \((A)\) and \((R)\) are correct but \((R)\) is not the correct explanation of \((A)\)
- C \((A)\) is true but \((R)\) is false
- D \((A)\) is false but \((R)\) is true
Answer & Solution
Correct Answer
(B) Both \((A)\) and \((R)\) are correct but \((R)\) is not the correct explanation of \((A)\)
Step-by-step Solution
Detailed explanation
Assertion Reason both are correct Theory
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 satellite of \(10^3 \mathrm{~kg}\) mass is revolving in circular orbit of radius \(2 \mathrm{R}\). If \(\frac{10^4 \mathrm{R}}{6} \mathrm{~J}\) energy is supplied to the satellite, it would revolve in a new circular orbit of radius _______.
(use \(\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2, \mathrm{R}=\) radius of earth)JEE Mains 2024 Hard - With what speed should a galaxy move outward with respect to earth so that the sodium-D line at wavelength \(5890\) \(\stackrel{\circ}{{A}}\) is observed at \(5896\) \(\stackrel{\circ}{{A}}\) ? (in \({km} / {sec}\))JEE Mains 2021 Medium
- A force \(\overrightarrow{ F }=(2+3 x) \hat{ i }\) acts on a particle in the \(x\) direction where \(F\) is in newton and \(x\) is in meter. The work done by this force during a displacement from \(x =0\) to \(x =4\,m\), is .......\(J\).JEE Mains 2023 Medium
- A magnet hung at \(45^{\circ}\) with magnetic meridian makes an angle of \(60^{\circ}\) with the horizontal. The actual value of the angle of dip is.JEE Mains 2022 Medium
- Three vessels of equal volume contain gases at the same temperature and pressure. The first vessel contains neon (monoatomic), the second contains chlorine (diatomic) and third contains uranium hexafloride (polyatomic). Arrange these on the basis of their root mean square speed \(\left(v_{ ms }\right)\) and choose the correct answer from the options given below:JEE Mains 2023 Medium
- A point particle of mass, moves along the uniformly rough track \(PQR\) as shown in the figure. The coefficient of friction, between the particle and the rough track equals \(\mu\). The particle is released, from rest, from the point \(P\) and it comes to rest at a point \(R\). The energies, lost by the ball, over the parts, \(PQ\) and \(PR\), of the track, are equal to each other, and no energy is lost when particle changes direction from \(PQ\) to \(QR\). The values of the coefficient of friction \(\mu\) and the distance \(x(=QR)\) are, respecitvely close to
JEE Mains 2016 Hard
More PYQs from JEE Mains
- The shortest distance between the lines \(\frac{x-2}{3}=\frac{y+1}{2}=\frac{z-6}{2}\) and \(\frac{x-6}{3}=\frac{1-y}{2}=\frac{z+8}{0}\) is equal to \(............\)JEE Mains 2023 Hard
- If the data \(x_1, x_2, ...., x_{10}\) is such that the mean of first four of these is \(11\), the mean of the remaining six is \(16\) and the sum of squares of all of these is \(2,000\); then the standard deviation of this data isJEE Mains 2019 Hard
- If a hyperbola passes through the point \(\mathrm{P}(10,16)\) and it has vertices at \((\pm 6,0),\) then the equation of the normal to it at \(P\) isJEE Mains 2020 Hard
- The sum of all rational terms in the expansion of \(\left(2^{\frac{1}{5}}+5^{\frac{1}{3}}\right)^{15}\) is equal to :JEE Mains 2024 Hard
- A convex lens of refractive index 1.5 and focal length \(f=18 cm\) is immersed in water. The difference in focal lengths of the given lens when it is in water and in air is \(\alpha \times f\). The value of \(\alpha\) is ___________.
(refractive index of water \(=4 / 3\) )JEE Mains 2026 Medium - If \(A\) and \(B\) are two events such that \(P(A)=0.7\), \(\mathrm{P}(\mathrm{B})=0.4\) and \(\mathrm{P}(\mathrm{A} \cap \overline{\mathrm{B}})=0.5\), where \(\overline{\mathrm{B}}\) denotes the complement of \(B\), then \(P(B \mid(A \cup \bar{B}))\) is equal:-JEE Mains 2025 Medium