MCQ
The unit for nuclear dose given to a patient is
- AFermi
- BRutherford
- CCurie
- ✓Roentgen
✓
Answer
Correct option: D.
Roentgen
d
(d)
(d)
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 equation $\left( {P + \frac{a}{{{V^2}}}} \right)$ $(V - b)$ constant. The units of $a$ are
→$Assertion :$ One mole of any substance at any temperature or volume always contains $6.02\times10^{23}$ molecules.
$Reason :$ One mole of a substance always refers to $S.T.P.$ conditions.
→$Reason :$ One mole of a substance always refers to $S.T.P.$ conditions.
A cycle wheel of radius 0.4 m completes one revolution in one second then the acceleration of a point on the cycle wheel will be
A bullet of mass $0.01\,kg$ and travelling at a speed of $500\,m/s.$ strikes a block of mass $2\,kg.$ which is suspended by a string of length $5\,m.$ The centre of gravity of the block is found to raise a vertical distance of $0.1\,m.$ What is the speed of the bullet after it emerges from the block .............. $\mathrm{m}/ \mathrm{s}$
→A uniform rod of length $L$ has a mass per unit length $\lambda$ and area of cross-section $A$. If the Young's modulus of the rod is $Y$. Then elongation in the rod due to its own weight is ...........
→A second's pendulum is placed in a space laboratory orbiting around the earth at a height $3R$, where $R$ is the radius of the earth. The time period of the pendulum is
→For the given cyclic process $CAB$ as shown for a gas, the work done is ..... $J$
→Match the type of elasticity involved
→| $(i)$ Suspension fibre of galvanometer | $(a)$ Linear |
| $(ii)$ Bending of beam | $(b)$ Shear |
| $(iii)$ cutting piece of paper | $(c)$ Bulk |
| $(iv)$ mechanical waves in fluid | $(d)$ Shear |
The velocity time graph of a body moving in a straight line is shown in figure.The ratio of displacement to distance travelled by the body in time $0$ to $10\,s$ is
→A force $\mathrm{F}=20+10 \mathrm{y}$ acts on a particle in $y$ direction where $\mathrm{F}$ is in newton and $\mathrm{y}$ in meter. Work done by this force to move the particle from $y=0$ to $y=1 \;\mathrm{m}$ is......$J$
→