MCQ
Cyclotron is used to accelerate
- AElectrons
- BNeutrons
- ✓Positive ions
- DNegative ions
✓
Answer
Correct option: C.
Positive ions
(c) A cylotron is a device by which the positively charged particles like proton, deuetron etc., can be acclearated. The working of cyclotron is bassed on the fact that a positively charged particle can be accelerated to a suffciently high energy with the help of similler values of oscilating electric field by making it to cross the same electric field time and again with the use of strong magentic field.
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 fundamental frequency of a string stretched with a weight of 4 $\mathrm{kg}$ is $256 \mathrm{~Hz}$. The weight required to produce its octave is
→If the K.E. of a body is increased by $300 \%$, its momentum will increase by
→A pump motor is used to deliver water at a certain rate from a given pipe. To obtain twice as much water from the same pipe in the same time, power of the motor has to be increased to
A substance breaks down by a stress of $10 \cdot N / m$. If the density of the material of the wire is $3 \times 10 kg / m$, then the length of the wire of the substance which will break under its own weight when suspended vertically, is
→A thermodynamic system goes from states (i) $P_1, V$ to $2 P_1, V$ (ii) $P, V$ to $P, 2 V$. Then work done in the two cases is
→The work function for metals $A, B$ and $C$ are respectively $1.92 \mathrm{eV}$, $2.0 \mathrm{eV}$ and $5 \mathrm{eV}$. According to Einstein's equation, the metals which will emit photo electrons for a radiation of wavelength $4100 \mathring A$ is/are
→A candle placed $25 \mathrm{~cm}$ from a lens, forms an image on a screen placed $75 \mathrm{~cm}$ on the other end of the lens. The focal length and type of the lens should be
→A block $P$ of mass $m$ is placed on a frictionless horizontal surface. Another block $Q$ of same mass is kept on $P$ and connected to the wall with the help of a spring of spring constant $k$ as shown in the figure. $\mu_s$ is the coefficient of friction between $P$ and $Q$. The blocks move together performing $S H M$ of amplitude $A$. The maximum value of the friction force between $P$ and $Q$ is
→
A coil having an area $A_0$ is placed in a magnetic field which changes from $B_0$ to $4 B_0$ in a time interval $t$. The e.m.f. induced in the coil will be
→A nichrome wire $50 \mathrm{~cm}$ long and one square millimetre crosssection carries a current of $4 \mathrm{~A}$ when connected to a $2 \mathrm{~V}$ battery. The resistivity of nichrome wire in ohm metre is
→