MCQ
Product $(B)$ of the reaction is
- A
- ✓
- C
- D
✓
Answer
Correct option: B.
b
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The atomic hydrogen emits a line spectrum consisting of various series. Which series of hydrogen atomic spectra is lying in the visible region?
Some laws/processes are given in Column $I$. Match these with the physical phenomena given in Column $II$ and indicate your answer by darkening appropriate bubbles in the $4 \times 4$ matrix given in the $ORS$.
→| Column $I$ | Column $II$ |
| $(A)$ Transition between two atomic energy levels | $(p)$ Characteristic $X$-rays |
| $(B)$ Electron emission from a material | $(q)$ Photoelectric effect |
| $(C)$ Mosley's law | $(r)$ Hydrogen spectrum |
| $(D)$ Change of photon energy into kinetic energy of electrons | $(s)$ $\beta$-decay |
If satellite is shifted towards the earth. Then time period of satellite will be
For a simple harmonic motion in a mass spring system shown, the surface is frictionless. When the mass of the block is $1\,kg$, the angular frequency is $\omega_1$. When the mass block is $2\,kg$ the angular frequency is $\omega_2$. The ratio $\omega_2 / \omega_1$ is
→A ray of light suffers minimum deviation when incident on a $60^o$ prism of refractive index $\sqrt 2$ . The angle of incidence is......$^o$
→Water flows into a large tank with flat bottom at the rate of ${10^{ - 4}}\,{m^3}{s^{ - 1}}$. Water is also leaking out of a hole of area $1\, cm^2$ at its bottom. If the height of the water in the tank remains steady, then this height is........ $cm$
→A black hole is an object whose gravitational field is so strong that even light cannot escape from it. To what approximate radius would earth $($ mass $= 5 .98 \times \,10^{24}\, kg)$ have to be compressed to be a black hole?
→Weight of a body decreases by $1.5 \%$, when it is raised to a height $h$ above the surface of earth. When the same body is taken to same depth $h$ in a mine, its weight will show ........
→Force $F$ applied on a body is written as $F =(\hat{ n } \cdot F ) \hat{ n }+ G$, where $\hat{ n }$ is a unit vector. The vector $G$ is equal to
→A particle of mass $5 × 10^{-5}\ kg$ is placed at lowest point of smooth parabola $x^2 = 40y$ ( $x$ and $y$ in $m$ ). If it is displaced slightly such that it is constrained to move along parabola, angular frequency of oscillation (in $rad/s$) will be approximately:-
→