AP EAMCET · PHYSICS · Gravitation
Assertion A An astronaut inside a massive spaceship orbiting around the earth will experience a finite but small gravitational force.
Reason \(\mathbf{R}\) The centripetal force necessary to keep the spaceship in orbit around the earth is provided by the gravitational force between the earth and the spaceship.
- A Both (A) and (R) are true and (R) is the correct explanation of (A)
- B Both \((A)\) and \((R)\) are true and \((R)\) is not the correct explanation of (A)
- C (A) is true but (R) is not true
- D (A) is not true but (R) is true
Answer & Solution
Correct Answer
(D) (A) is not true but (R) is true
Step-by-step Solution
Detailed explanation
Astronaut would not experience any gravitational force as it is balanced by centrifugal force. So, A is false and R is true.
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
- \(A 3 \mathrm{~m}\) long steel wire is stretched to increase its length by \(0.3 \mathrm{~cm}\). Poisson's ratio for steel is 0.26 . The lateral strain produced in the wire isAP EAMCET 2020 Medium
- What is the angle of banking of a railway track of radius of curvature \(250 \mathrm{~m}\), if the maximum velocity of the train is \(90 \mathrm{~km} / \mathrm{h}\) ? \(\left(g=10 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2021 Medium
- At a given instant of time the position vector of a particle moving in a circle with a velocity \(3 \hat{\mathbf{i}}-4 \hat{\mathbf{j}}+5 \hat{\mathbf{k}}\) is \(\hat{\mathbf{i}}+9 \hat{\mathbf{j}}-3 \hat{\mathbf{k}}\). Its angular velocity at that time isAP EAMCET 2005 Medium
- The base current in a transistor circuit changes from \(45 \mu \mathrm{A}\) to \(140 \mu \mathrm{A}\). Accordingly, the collector current changes from \(0.2 \mathrm{~mA}\) to \(0.400 \mathrm{~mA}\). The gain in current isAP EAMCET 2013 Easy
- The following is not the method of reducing frictionAP EAMCET 2023 Easy
- Two open organ pipes of lengths \(50 \mathrm{~cm}\) and \(51 \mathrm{~cm}\) are totally immersed in a medium. They are found to give 40 beats in \(10 \mathrm{~s}\) when each is sounding at its fundamental note. The speed of sound in this medium isAP EAMCET 2022 Medium
More PYQs from AP EAMCET
- Which of the following statements is correct about the cathode rays?
1. These rays start from anode and move towards cathode.
2. They are visible with human eye.
3. In presence of electric and magnetic fields, they behave like positively charged particles.
4. Their characteristic does not depend on the nature of material at electrode.AP EAMCET 2020 Easy - A value of \(b\) for which the rank of the matrix \(A=\left[\begin{array}{cccc}1 & 1 & -1 & 0 \\ 4 & 4 & -3 & 1 \\ b & 2 & 2 & 2 \\ 9 & 9 & b & 3\end{array}\right]\) is 3 , isAP EAMCET 2019 Easy
- The remainder when the polynomial \(2 x^5-3 x^4+5 x^3-3 x^2+7 x-9\) is divided by \(x^2-x-3\) isAP EAMCET 2022 Easy
- If \(\left[\begin{array}{rrr}1 & -1 & x \\ 1 & x & 1 \\ x & -1 & 1\end{array}\right]\) has no inverse, then the real value of \(x\) isAP EAMCET 2009 Easy
- A cannon shell fired breaks into two equal parts at its highest point. One part retraces the path to the cannon with kinetic energy \(E_1\) and kinetic energy of the second part is \(E_2\), relation between \(E_1\) and \(E_2\) isAP EAMCET 2014 Hard
- Find \(\alpha^4+\beta^4\) if \(\alpha, \beta\) are the roots of equation \(x^2+x+1=0\).AP EAMCET 2020 Easy