If a lift is going up with acceleration, the apparent weight of a body is:
Show Hint
- More or less than true weight
- Equal to the true weight
- Less than the true weight
- More than the true weight
The Correct Option is D
Solution and Explanation
Thus, the correct answer is (D) More than the true weight.
Top Questions on Mechanics
- The Hamiltonian for a one-dimensional system with mass \( m \), position \( q \), and momentum \( p \) is: \[ H(p, q) = \frac{p^2}{2m} + q^2 A(q) \] where \( A(q) \) is a real function of \( q \). If \[ m \frac{d^2 q}{dt^2} = -5q A(q), \] then \[ \frac{d A(q)}{d q} = n \frac{A(q)}{q}. \] The value of \( n \) (in integer) is:
- GATE PH - 2025
- Physics
- Mechanics
- The energy of a free, relativistic particle of rest mass \( m \) moving along the \( x \)-axis in one dimension, is denoted by \( T \). When moving in a given potential \( V(x) \), its Hamiltonian is \( H = T + V(x) \). In the presence of this potential, its speed is \( v \), conjugate momentum \( p \), and the Lagrangian \( L \). Then, which of the following option(s) is/are correct?
- GATE PH - 2025
- Physics
- Mechanics
A two-level quantum system has energy eigenvalues \( E_1 \) and \( E_2 \). A perturbing potential \( H' = \lambda \Delta \sigma_x \) is introduced, where \( \Delta \) is a constant having dimensions of energy, \( \lambda \) is a small dimensionless parameter, and \( \sigma_x = \begin{pmatrix} 0 & 1 \\ 1 & 0 \end{pmatrix} \).
The magnitudes of the first and the second order corrections to \( E_1 \) due to \( H' \), respectively, are:- GATE PH - 2025
- Physics
- Mechanics
Consider a two-level system with energy states \( +\epsilon \) and \( -\epsilon \). The number of particles at \( +\epsilon \) level is \( N+ \) and the number of particles at \( -\epsilon \) level is \( N- \). The total energy of the system is \( E \) and the total number of particles is \( N = N+ + N- \). In the thermodynamic limit, the inverse of the absolute temperature of the system is:
(Given: \( \ln N! \approx N \ln N - N \))- GATE PH - 2025
- Physics
- Mechanics
- A paramagnetic material containing paramagnetic ions with total angular momentum \( J = \frac{1}{2} \) is kept at absolute temperature \( T \). The ratio of the magnetic field required for 80% of the ions to be in the lowest energy state to that required for having 60% of the ions to be in the lowest energy state at the same temperature is:
- GATE PH - 2025
- Physics
- Mechanics
Questions Asked in Bihar BEd CET exam
- If 25th February, 2008 was a Monday, then what was the day of 15th March, 2008?
- Bihar BEd CET - 2024
- Clock and Calendar
- Which Carbon Compound is used as fire extinguisher?
- Bihar BEd CET - 2024
- Chemistry in Everyday Life
- Supersonic Aircrafts discharge the following substance into the stratosphere:
- Bihar BEd CET - 2024
- Environmental pollution
- When water is added to anhydrous white copper sulphate, the color will change to:
- Bihar BEd CET - 2024
- Chemistry in Everyday Life
- The Biodiversity Act was formed in India in which year?
- Bihar BEd CET - 2024
- Biodiversity