Browse and search thousands of solved questions for your preparation.
Free questions with full explanations — locked behind signup to protect quality.
The area of a rectangular field (in $m^2$) of length 55.3 m and breadth 25 m after rounding off to the value for correct significant digits is:
The refracting angle of a prism is $A$, and the refractive index of the material of the prism is $\cot(A/2)$. The angle of minimum deviation is:
Which of the following is not an objective of Biofortification in crops?
For a parallel beam of monochromatic light of wavelength $\lambda$, diffraction is produced by a single slit whose width $a$ is much greater than the wavelength of the light. If $D$ is the distance of the screen from the slit, the width of the central maxima will be:
During muscular contraction which of the following events occur? (a) 'H' zone disappears (b) 'A' band widens (c) 'I' band reduces in width (d) Myosine hydrolyzes ATP, releasing the ADP and Pi. (e) Z-lines attached to actins are pulled inwards. Choose the correct answer from the options given below:
Which of these statements is incorrect?
Consider the statements given below regarding contraception and answer as directed thereafter: (i) Medical Termination of Pregnancy (MTP) during first trimester is generally safe. (ii) Generally, chances of conception are nil until mother breast-feeds the infants upto two years. (iii) Intrauterine devices like copper-T are effective contraceptives. (iv) Contraception pills may be taken up to one week after coitus to prevent conception. Which two of the above statements are correct?
Assisted reproductive technology, IVF involves transfer of:
Which of the following statements are correct with respect to the hormone and its function? A: Thyrocalcitonin (TCT) regulates the blood calcium level B: In males, FSH and androgens regulate spermatogenesis C: Hyperthyroidism can lead to goitre D: Glucocorticoids are secreted in Adrenal Medulla E: Parathyroid hormone is regulated by circulated levels of sodium ions
Nissl bodies are mainly composed of
Following are the statements with reference to 'lipids'. (a) Lipids having only single bonds are called unsaturated fatty acids (b) Lecithin is a phospholipid. (c) Trihydroxy propane is glycerol. (d) Palmitic acid has 20 carbon atoms including carboxyl carbon. (e) Arachidonic acid has 16 carbon atoms. Choose the correct answer from the options given below.
A particle executing simple harmonic motion has a kinetic energy of $K = K_0 \cos^2(\omega t)$. The values of the maximum potential energy and the total energy are, respectively:
AGGTATCGCAT is a sequence from the coding strand of a gene. What will be the corresponding sequence of the transcribed mRNA?
The equivalent capacitance of the system shown in the following circuit is
A normal girl, whose mother is haemophilic marries a male with no ancestral history of haemophilia. What will be the possible phenotypes of the offsprings?
A square loop, carrying a steady current I, is placed in a horizontal plane near a long straight conductor carrying a steady current I₁ at a distance d from the conductor as shown in figure. The loop will experience
Family Fabaceae differs from Solanaceae and Liliaceae. With respect to the stamens, pick out the characteristics specific to family Fabaceae but not found in Solanaceae or Liliaceae.
Which of the following is an occupational respiratory disorder?
In hydrogen spectrum, the shortest wavelength in the Balmer series is $\lambda$. The shortest wavelength in the Bracket series is
Which one of the following phytohormones promotes nutrient mobilization which helps in the delay of leaf senescence in plants?