AP EAMCET · PHYSICS · Gravitation
The gravitational field in a region is given by \(\mathbf{E}=(5 \hat{\mathbf{i}}+12 \hat{\mathbf{j}}) \mathrm{Nkg}^{-1}\). If a particle of mass \(2 \mathrm{~kg}\) is moved from the origin to the point \((12 \mathrm{~m}\), \(15 \mathrm{~m}\) ) in this region, the change in gravitational potential energy is
- A \(-450 J\)
- B \(-480 J\)
- C \(-240 J\)
- D \(-500 J\)
Answer & Solution
Correct Answer
(B) \(-480 J\)
Step-by-step Solution
Detailed explanation
Given, \(\mathbf{E}=(5 \hat{\mathbf{i}}+12 \hat{\mathbf{j}}) \mathrm{Nkg}^{-1}, m=2 \mathrm{~kg}\) and \(\mathbf{r}=(12 \hat{\mathbf{i}}+15 \hat{\mathbf{j}}) \mathrm{m}\) Gravitational potential,…
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
- Which of the following statements are true in the context of a Compound Microscope?
(A) Each lens produces a virtual and inverted image.
(B) The objective has a very short focal length.
(C) The eyepiece is used as a simple magnifying glass.
(D) The objective and eyepiece are convex and concave lenses respectively.AP EAMCET 2011 Easy - The sum of two point positive charges separated by a distance of 1.5 m in air is \(25 \mu \mathrm{C}\). If the electrostatic force between the two charges is 0.6 N, then the difference between the two charges isAP EAMCET 2025 Medium
- The densities of wood and benzene at \(0^{\circ} \mathrm{C}\) are \(880 \mathrm{~kg} \mathrm{~m}^{-3}\) and \(900 \mathrm{~kg} \mathrm{~m}^{-3}\), respectively. The coefficient of volume expansion is \(1.2 \times 10^{-3} \mathrm{C}^{-10}\) for wood and \(1.5 \times 10^{-30} \mathrm{C}^{-1}\) for benzene. Then the temperature at which a piece of wood just sinks in benzene isAP EAMCET 2019 Medium
- An infinitely long rod lies along the axis of a concave mirror of focal length \(f\). The nearer end of the rod is at a distance \(u,(u>f)\) from the mirror. Its image will have a lengthAP EAMCET 2016 Easy
- A bullet of mass \(0.02 \mathrm{~kg}\) travelling horizontally with velocity \(250 \mathrm{~ms}^{-1}\) strikes a block of wood of mass \(0.23 \mathrm{~kg}\) which rests on a rough horizontal surface. After the impact, the block and bullet move together and come to rest after travelling a distance of \(40 \mathrm{~m}\). The coefficient of sliding friction of the rough surface is \(\left(g=9.8 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2009 Medium
- The number of rotational degrees of freedom of a monatomic molecule isAP EAMCET 2023 Easy
More PYQs from AP EAMCET
- If \([x]\) denotes the greatest integer \(\leq x\), then \(\lim _{n \rightarrow-\infty} \frac{1}{n^3}\left\{\left[1^2 x\right]+\left[2^2 x\right]+\left[3^2 x\right]+\ldots+\left[n^2 x\right]\right\}=\)AP EAMCET 2018 Easy
- A body of mass 1 kg is suspended from a spring of force constant \(600 \mathrm{~N} \mathrm{~m}^{-1}\). Another body of mass 0.5 kg moving vertically upwards hits the suspended body with a velocity of \(3 \mathrm{~m} \mathrm{~s}^{-1}\) and embedded in it. The amplitude of motion isAP EAMCET 2025 Medium
- Two masses \(90 \mathrm{~kg}\) and \(160 \mathrm{~kg}\) are separated by a distance of \(5 \mathrm{~m}\). The magnitude of intensity of the gravitational field at a point which is at a distance \(3 \mathrm{~m}\) from the \(90 \mathrm{~kg}\) mass and \(4 \mathrm{~m}\) from the \(160 \mathrm{~kg}\) mass is (Universal gravitational constant, \(\left.G=6.67 \times 10^{-11} \mathrm{~N}-\mathrm{m}^2 \mathrm{~kg}^{-2}\right)\)AP EAMCET 2019 Hard
- The equation of the hyperbola which passes through the point \((2,3)\) and has the asymptotes \(4 x+3 y-7=0\) and \(x-2 y-1=0\) isAP EAMCET 2010 Medium
- Calculate enthalpy for formation of ethylene from the following data
(I) \(\mathrm{C}_{\text {(graphite) }}+\mathrm{O}_2(\mathrm{~g}) \longrightarrow \mathrm{CO}_2(\mathrm{~g})\)
\(\Delta H=393.5 \mathrm{~kJ}\)
(II) \(\mathrm{H}_2(g)+\frac{1}{2} \mathrm{O}_2(g) \longrightarrow \mathrm{H}_2 \mathrm{O}(l)\);
\(\Delta U=-256.2 \mathrm{~kJ}\)
(III) \(\begin{array}{r}\mathrm{C}_2 \mathrm{H}_4(g)+3 \mathrm{O}_2(g) \rightarrow 2 \mathrm{CO}_2(g)+2 \mathrm{H}_2 \mathrm{O}(l) ; \\ \Delta H=-1410.8 \mathrm{~kJ}\end{array}\)AP EAMCET 2007 Easy - Small quantities of \(\mathrm{NO}\) and \(\mathrm{HNO}_3\) are formed as impurities, when \(\mathrm{N}_2\) is prepared from \(\mathrm{NH}_4 \mathrm{Cl}\) (aq) and \(\mathrm{NaNO}_2\) (aq), these impurities can be removed by passing the \(\mathrm{N}_2\) gas through which of the following?AP EAMCET 2022 Easy