AP EAMCET · PHYSICS · Motion In Two Dimensions
Assertion (A) The speed of a body in uniform circular motion is constant.
Reason \((R)\) In uniform circular motion, the acceleration of the body is constant.
- A Both (A) and (R) are true and (R) is the correct explanation of (A).
- B Both (A) and (R) are true 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
(C) (A) is true but (R) is false.
Step-by-step Solution
Detailed explanation
(i) Assertion is correct : In uniform circular motion, body moves with constant speed. It is magnitude of velocity, which is constant. (ii) Reason is incorrect : In uniform circular motion, direction of acceleration (centripetal) is always along the centre, which keep changing…
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
- The minimum excitation energy of an electron revolving in the first orbit of hydrogen isAP EAMCET 2023 Easy
- A ball \(P\) moving with a speed of \(v \mathrm{~ms}^{-1}\) collides directly with another identical ball \(Q\) moving with a speed \(10 \mathrm{~ms}^{-1}\) in the opposite direction. \(P\) comes to rest after the collision. If the coefficient of restitution is 0.6 , the value of \(v\) isAP EAMCET 2015 Hard
- The current in an inductor of self-inductance \(L=40 \mathrm{mH}\) is to be increased uniformly from \(2 \mathrm{~A}\) to \(12 \mathrm{~A}\) in \(8 \mathrm{~ms}\). The emf induced in the inductor during this process isAP EAMCET 2021 Medium
- A body is projected at an angle of \(45^{\circ}\) with the horizontal with a velocity of \(60 \sqrt{2} \mathrm{~ms}^{-1}\). Then the angle made by its velocity with the horizontal after \(6 \mathrm{~s}\) isAP EAMCET 2017 Easy
- The fractional change in the volume of a glass slab whe subjected to hydraulic pressure of \(14 \mathrm{~atm}\) is (Bulk modulus of glass \(=40 \times 10^9 \mathrm{Nm}^{-2}\) )AP EAMCET 2023 Easy
- The correct order of electromagnetic waves with increasing frequency isAP EAMCET 2022 Medium
More PYQs from AP EAMCET
- The least distance of the point \((10,7)\) from the circle \(x^2+y^2-4 x-2 y-20=0\) isAP EAMCET 2022 Easy
- Two moving coil galvanometer, \(X\) and \(Y\) have coils with resistance \(10 \Omega\) and \(14 \Omega\) cross-sectional areas \(4.8 \times 10^{-3} \mathrm{~m}^2\) and \(2.4 \times 10^{-3} \mathrm{~m}^2\), number of turns 30 and 45 respectively. They are placed in magnetic field of \(0.25 \mathrm{~T}\) and \(0.50 \mathrm{~T}\) respectively. Then, the ratio of their current sensitivities and the ratio of their voltage sensitivities are respectivelyAP EAMCET 2018 Hard
- A particle moving in \(\mathrm{x}-\mathrm{y}\) plane starts from the origin at \(\mathrm{t}=0\) with an initial velocity \((-\hat{\mathrm{i}}+\hat{\mathrm{j}}) \mathrm{ms}^{-1}\) and undergoes an acceleration of \((6 \hat{\mathrm{i}}+4 \hat{\mathrm{j}}) \mathrm{ms}^{-2}\). It's displacement after \(2 \mathrm{~s}\) isAP EAMCET 2022 Hard
- If the bond length and dipole moment of a diatomic molecule are \(1.25 \mathrm{~A}\) and \(1.0 \mathrm{D}\) respectively, what is the per cent ionic character of the bond?AP EAMCET 2003 Easy
- If the equation to the locus of points equidistant from the points \((-2,3),(6,-5)\) is \(a x+b y+c=0\), where \(a>0\), then the ascending order of \(a, b, c\) isAP EAMCET 2015 Easy
- If a resistor of resistance \(4 \Omega\), a capacitor of capacitive reactance \(6 \Omega\) and an inductor of inductive reactance \(9 \Omega\) are connected in series with an ac source, then the impedance of the circuit isAP EAMCET 2025 Easy