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Which of the following is deflected by electric field?
Consider the two surgical procedures (A and B) given below and choose the correct statement:
Which of the following approaches does not give the defined action of contraceptive?
The half-life of a radioactive nucleus is 50 days. The time interval $(t_2 - t_1)$ between the time $t_2$ when $\frac{2}{3}$ of it has decayed and the time $t_1$ when $\frac{1}{3}$ of it had decayed is:
A childless couple can be assisted to have a child through a technique called GIFT. The full form of this technique is:
Hysterectomy is surgical removal of:
Tubectomy is a method of sterilisation in which:
In the given nuclear reaction, the element X is: ${}^{22}_{11}\mathrm{Na} \rightarrow X + e^+ + \nu$
Given below are four methods (A-D) and their modes of action (1-4) in achieving contraception. Select their correct matching from the four options that follow: Column I A. The Pill B. Condom C. Vasectomy D. Copper T Column II 1. Prevents sperms reaching cervix 2. Suppress sperm motility 3. Prevents ovulation 4. Semen contains no sperms
Which of the following is correct regarding HIV, hepatitis B, gonorrhoea, trichomoniasis?
A nucleus with mass number 240 breaks into fragments each of mass number 120. The binding energy per nucleon of unfragmented nuclei is 7.6 MeV while that of fragments is 8.5 MeV. The total gain in the binding energy in the process is:
In a radioactive substance at t = 0, the number of atoms is $8 \times 10^4$. Its half-life period is 3 yr. The number of atoms equal to $1 \times 10^4$ will remain after an interval of:
Condoms are barriers that cover:
Cu released by CuTs plays a role in:
When a hydrogen atom is in its first excited level, its radius is:
What is false for ZIFT?
Which of the following diseases is/are not completely curable?
In a common-emitter transistor amplifier, the audio signal voltage across the collector is $3\text{ V}$. The resistance of the collector is $3\text{ k}\Omega$. If the current gain is $100$ and the base resistance is $2\text{ k}\Omega$, the voltage and power gain of the amplifier are:
The final proof for DNA as the genetic material came from the experiments of:
pH of a saturated solution of $Ca(OH)_2$ is 9. The solubility product ($K_{sp}$) of $Ca(OH)_2$ is: