Suppose the terminal ends of an axon are in contact with the dendrites of four adjacent neurons,the nerve impulse of the axon will:
- ATravel in all the four neurons
- BGet distributed in all the four neurons resulting in a weak impulse
- CTravel only in one neuron which is in closest contact and with the same intensity
- DTravel in none of the neurons because the impulse travels from dendrites of one neuron into the axon of another neuron
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Light enters from air into a given medium at an angle of $45^{\circ}$ with the interface of the air-medium surface. After refraction,the light ray is deviated through an angle of $15^{\circ}$ from its original direction. The refractive index of the medium is:
Suppose that $E_1$ and $E_2$ are two events of a random experiment such that $P(E_1) = \frac{1}{4}$, $P(E_2 / E_1) = \frac{1}{2}$ and $P(E_1 / E_2) = \frac{1}{4}$. Observe the lists given below. The correct matching of List-$I$ from List-$II$ is:
List-$I$ List-$II$ $(A)$ $P(E_2)$ $(i)$ $1/4$ $(B)$ $P(E_1 \cup E_2)$ $(ii)$ $5/8$ $(C)$ $P(\bar{E}_1 / \bar{E}_2)$ $(iii)$ $1/8$ $(D)$ $P(E_1 / \bar{E}_2)$ $(iv)$ $1/2$ $(v)$ $3/8$ $(vi)$ $3/4$
| List-$I$ | List-$II$ |
| $(A)$ $P(E_2)$ | $(i)$ $1/4$ |
| $(B)$ $P(E_1 \cup E_2)$ | $(ii)$ $5/8$ |
| $(C)$ $P(\bar{E}_1 / \bar{E}_2)$ | $(iii)$ $1/8$ |
| $(D)$ $P(E_1 / \bar{E}_2)$ | $(iv)$ $1/2$ |
| $(v)$ $3/8$ | |
| $(vi)$ $3/4$ |
$A$ cannon shell fired breaks into two equal parts at its highest point. One part retraces its path to the cannon with kinetic energy $E_1$,and the kinetic energy of the second part is $E_2$. The relation between $E_1$ and $E_2$ is:
Silica is added to roasted copper ore during extraction in order to remove
Two substances $A$ and $B$ of equal mass $m$ are heated at a uniform rate of $6 \, cal \, s^{-1}$ under similar conditions. $A$ graph between temperature and time is shown in the figure. The ratio of heat absorbed $H_A/H_B$ by them for complete fusion is
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