Which of the following is a genetically dominant trait in human beings?

$I$ carried $1000\,kg$ of watermelon in summer by train. In the beginning,the water content was $99\%$. By the time $I$ reached the destination,the water content had dropped to $98\%$. The reduction in the weight of the watermelon was $.......\,kg$.

In the circuit shown in the figure,neglecting source resistance,the voltmeter and ammeter readings will respectively be:

$A$ smooth cylinder of mass $m$ and radius $R$ is resting on two corner edges $A$ and $B$ as shown in the figure. The relation between the normal reactions at the edges $A$ and $B$ is

What is the hybridization state of the central atom in the conjugate base of $NH_4^{+}$ ion?

The frequency for which a $5\,\mu F$ capacitor has a reactance of $\frac{1}{1000}\,\Omega$ is given by