Question
Particles having positive charges occasionally come with high velocity from the sky towards the earth. On account of the magnetic field of earth, they would be deflected towards the
✓
Answer
(c)East, (By $\overrightarrow F = q(\overrightarrow {v\,} \times \overrightarrow B )$) or by applying Fleming's left hand rule.
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
For a series $LCR$ circuit the power loss at resonance is
→Acetophenone is prepared from
Block $A$ is hanging from a vertical spring and it is at rest. Block $'B'$ strikes the block $'A'$ with velocity $v$ and stick to it. Then the velocity $v$ for which the spring just attains natural length is:
→In a Young's double slit experiment, the intensity at a point is $\left(\frac{1}{4}\right)^{\text {th }}$ of the maximum intensity, the minimum distance of the point from the central maximum is . . . . . . . . $\mu \mathrm{m}$.
→(Given : $\lambda=600 \mathrm{~nm}, d=1.0 \mathrm{~mm}, \mathrm{D}=1.0 \mathrm{~m}$ )
$A$ paraxial beam is incident on a glass $(n = 1.5)$ hemisphere of radius $R = 6\, cm$ in air as shown. The distance of point of convergence $F$ from the plane surface of hemisphere is......$cm$
→A coil of inductance $1\,H$ and resistance $100\,\Omega$ is connected to a battery of $6\,V$. Determine approximately :
→$(a)$ The time elapsed before the current acquires half of its steady - state value
$(b)$ The energy stored in the magnetic field associated with the coil at an instant $15\,ms$ after the circuit is switched on. (Given In $2=0.693$, $\left.e ^{-3 / 2}=0.25\right)$
In the equation $\left[X+\frac{a}{Y^2}\right][Y-b]= R T, X$ is pressure, $Y$ is volume, $R$ is universal gas constant and $T$ is temperature. The physical quantity equivalent to the ratio $\frac{a}{b}$ is
→The change in the magnitude of the volume of an ideal gas when a small additional pressure $\Delta P$ is applied at a constant temperature, is the same as the change when the temperature is reduced by a small quantity $\Delta T$ at constant pressure. The initial temperature and pressure of the gas were $300\, K$ and $2\; atm$ respectively. If $|\Delta T|=C|\Delta P|$ then value of $C$ in $(K / a t m)$ is......
→In Vander Waal's equation $\left[ {P + \frac{a}{{{V^2}}}} \right]\,(V - b) = RT,$ the dimensions of $a$ are
→Density of substance at $0°C$ is $10\, gm/cc$ and at $100°C,$ its density is $9.7\, gm/cc$. The coefficient of linear expansion of the substance will be
→