Adrenocorticotrophic hormone is secreted by
Options
(a) thyroid (b) adrenalin (c) pancreas (d) anterior pituitary
Correct Answer:
anterior pituitary
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Chernobyl nuclear tragedy occurred on which date?
Options
(a) 3rd December, 1984 (b) April, 1989 (c) 6th August, 1945 (d) 9th August, 1945
Correct Answer:
April, 1989
Explanation:
On 26 April, 1986 at […]
Clones of plants can be produced by
Options
(a) sexual reproduction (b) hybridisation (c) vegetative reproduction (d) mutational breeding
Correct Answer:
vegetative reproduction
Explanation:
No explanation available. Be the first to write the […]
Antibodies in our body are produced by
Options
(a) B-lymphocytes (b) T-lymphocytes (c) monocytes (d) RBC’s
Correct Answer:
B-lymphocytes
Explanation:
No explanation available. Be the first to write the explanation for this question […]
For distinguishing phenol and acetic acid we required to react (treat) them with
Options
(a) Na₂CO₃ (b) NaOH (c) HCl (d) NaHCO₃
Correct Answer:
NaHCO₃
Explanation:
Acetic acid on treatment with NaHCO₃ evolves […]
The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
Options
(a) 5380 Å (b) 2900 Å (c) 2500 Å (d) 2000 Å
Correct Answer:
5380 Å
Explanation:
Work […]
Which of the following transitions will have highest emission wavelength?
Options
(a) n=2 to n=1 (b) n=1 to n=2 (c) n=2 to n=5 (d) n=5 to n=2
Correct Answer:
n=5 to n=2
Explanation: […]
The dimensional formula for Young’s modulus is
Options
(a) [ML⁻¹T⁻²] (b) [M⁰LT⁻²] (c) [MLT⁻²] (d) [ML²T⁻²]
Correct Answer:
[ML⁻¹T⁻²]
Explanation:
Young’s modulus Y=Stress/Strain=(Force/Area)/(elongation/Iength)
Y=[MLT⁻²][L]/[L²][L] = [ML⁻¹T⁻²]
Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
Options
(a) 1/R (b) 1/√R (c) R (d) 1/R³/²
Correct Answer:
1/R
Explanation:
Kinetic energy of the satellite=1/2mv₀² […]
The radius of orbit of a planet is two times that of the earth. The time period of planet is
Options
(a) 4.2 year (b) 2.8 year (c) 5.6 year (d) 8.4 year
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