The mirror image of the above text about the x-axis is
The mirror image of the above text about the x-axis is
Show Hint
- A
- B
- C
- D
The Correct Option is B
Solution and Explanation
Top Questions on Symmetry
- The given figure is reflected about the horizontal dashed line and then rotated clockwise by \(90^\circ\) about an axis perpendicular to the plane of the figure.
\begin{center} \includegraphics[width=0.5\textwidth]{01.jpeg} \end{center} Which one of the following options correctly shows the resultant figure? - Which one of the following options has the correct sequence of objects arranged in the increasing number of mirror lines (lines of symmetry)?
- Which one of the following options has the correct sequence of objects arranged in the increasing number of mirror lines (lines of symmetry)?
- The symmetry element that does NOT belong to the \( C_{4v} \) point group is:
Questions Asked in GATE CE exam
- The screened nuclear charge of neutral Helium atom is given as \( 1.7e \), where \( e \) is the magnitude of the electronic charge. Assuming the Bohr model of the atom for which the energy levels are \( E_n = - \frac{Z^2}{2n^2} \) atomic units (where \( Z \) is the atomic number), the first ionization potential of Helium in atomic units is:
- GATE PH - 2025
- Atomic Physics
A point charge \( q \) is placed at a distance \( d \) above an infinite, grounded conducting plate placed on the \( xy \)-plane at \( z = 0 \).
The electrostatic potential in the \( z > 0 \) region is given by \( \phi = \phi_1 + \phi_2 \), where:\( \phi_1 = \frac{1}{4 \pi \epsilon_0} \cdot \frac{q}{\sqrt{x^2 + y^2 + (z - d)^2}} \)
\( \phi_2 = - \frac{1}{4 \pi \epsilon_0} \cdot \frac{q}{\sqrt{x^2 + y^2 + (z + d)^2}} \)Which of the following option(s) is/are correct?
- GATE PH - 2025
- Electrostatics and Work Done by Electric Field
Two projectile protons \( P_1 \) and \( P_2 \), both with spin up (along the \( +z \)-direction), are scattered from another fixed target proton \( T \) with spin up at rest in the \( xy \)-plane, as shown in the figure. They scatter one at a time. The nuclear interaction potential between both the projectiles and the target proton is \( \hat{\lambda} \vec{L} \cdot \vec{S} \), where \( \vec{L} \) is the orbital angular momentum of the system with respect to the target, \( \vec{S} \) is the spin angular momentum of the system, and \( \lambda \) is a negative constant in appropriate units. Which one of the following is correct?
- GATE PH - 2025
- Quantum Mechanics
The figure shows an opamp circuit with a 5.1 V Zener diode in the feedback loop. The opamp runs from \( \pm 15 \, {V} \) supplies. If a \( +1 \, {V} \) signal is applied at the input, the output voltage (rounded off to one decimal place) is:
- GATE PH - 2025
- Electrical Circuits
A wheel of mass \( 4M \) and radius \( R \) is made of a thin uniform distribution of mass \( 3M \) at the rim and a point mass \( M \) at the center. The spokes of the wheel are massless. The center of mass of the wheel is connected to a horizontal massless rod of length \( 2R \), with one end fixed at \( O \), as shown in the figure. The wheel rolls without slipping on horizontal ground with angular speed \( \Omega \). If \( \vec{L} \) is the total angular momentum of the wheel about \( O \), then the magnitude \( \left| \frac{d\vec{L}}{dt} \right| = N(MR^2 \Omega^2) \). The value of \( N \) (in integer) is:
- GATE PH - 2025
- Rotational Motion