MCQ
The nucleus ${ }_{48}^{115} Pa$ after two successive $\beta^{-}$ decays will give
- A${ }_{46}^{115} Pa$
- B${ }_{49}^{114} In$
- C${ }_{50}^{113} Sn$
- ✓${ }_{5}^{115} Sn$
✓
Answer
Correct option: D.
${ }_{5}^{115} Sn$
${ }_{5}^{115} Sn$
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 strength of the magnetic field in which the magnet of a vibration magnetometer is oscillating is increased 4 times its original value. The frequency of oscillation would then become(a) Twice its original value(b) Four times its original value(c) Half its original value(d) One-fourth its original value
A convex lens forms a real image of a point object placed on its principal axis. If the upper half of the lens is painted black, the image will(a) Be shifted downwards(b) Be shifted upwards(c) Not be shifted(d) Shift on the principal axis
What is the equivalent capacitance between $A$ and $B$ in the given figure $($all are in farad$)$
→A double convex lens of focal length $20 \ cm$ is made of glass of refractive index $\frac{3}{2}.$ When placed completely in water $\left(\mathrm{a}^{\mu_{\mathrm{w}}=\frac{4}{3}}\right)$, its focal length will be
→In the Young's double slit experiment, the spacing between two slits is 0.1 mm. If the screen is kept at a distance of 1.0 m from the slits and the wavelength of light is 5000 Å, then the fringe width is(a) 1.0 cm(b) 1.5 cm(c) 0.5 cm(d) 2.0 cm
Deuterium is the most common isotope of hydrogen. How many neutrons does it have?
In an $L–R$ circuit connected to a battery the rate at which energy is stored in the inductor is plotted against time during the growth of the current in the circuit. Which of the following best represents the resulting curve
→If the distance between a point source and screen is doubled, then intensity of light on the screen will become(a) Four times(b) Double(c) Half (d) One-fourth
An electron $($charge $q$ coulomb$)$ enters a magnetic field of $H$ weber $/ m ^2$ with a velocity of $vm / s$ in the same direction as that of the field the force on the electron is
→How much energy in kilowatt hour is consumed in operating ten 50 watt bulbs for 10 hours per day in a month (30 days).(a) 1500(b) 5,000(c) 15(d) 150