Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
Which of the following is/are correct?
Condoms are barriers that cover:
Pills: I. Inhibit ovulation and implantation II. Alter the quality of cervical mucus to prevent or retard the entry of sperms III. Prevent the ejaculated semen from entering the female vagina IV. Inhibit spermatogenesis Which of the above statements are correct?
An object is moving with a uniform acceleration which is parallel to its instantaneous direction of motion. The displacement (s) – velocity (v) graph of this object is
The rate constant for a first order reaction is $4.606 \times 10^{-3} s^{-1}$. The time required to reduce 2.0 g of the reactant to 0.2 g is :
State which of the following statements are true: I. Abortions could happen spontaneously too. II. Infertility is the inability to produce viable offspring due to defects in the female partner only. III. Complete lactation could help in contraception. IV. Creating awareness can help create a reproductively healthy society.
What is false for GIFT?
Statutory ban on amniocentesis in India was necessary because:
A particle moves along a straight line such that its displacement at any time $t$ is given by $S = t^3 - 6t^2 + 3t + 4$ metres. The velocity when the acceleration is zero is:
Which of the following is/are related to STDs?
Cu released by CuTs plays a role in:
Vasectomies:
Tubectomy is a method of sterilisation in which:
The permissible use of the technique amniocentesis is for:
What is the figure given below showing in particular?
Which of the following is the least effective method of birth control?
To avoid transmission of STDs: I. Avoid sex with multiple partners. II. Always have unprotected sex. III. Use condoms during coitus. IV. Avoid sex with unknown partners V. Avoid sharing of needles Which of the above statements are correct?
What is true for surgical methods? I: Also called sterilization II: Terminal method of contraception III: Block gamete transport IV: Called vasectomy in females and tubectomy in males V: High reversibility and contraceptive efficiency
The test-tube baby programme employs which one of the following techniques?
If the radius of ${}^{27}_{13}\mathrm{Al}$ nucleus is taken to be $R_{\mathrm{Al}}$, then the radius of ${}^{125}_{53}\mathrm{Te}$ nucleus is near: