If tanA+tanB+tanC=tanA⋅tanB⋅tanC, then
tanA+tanB+tanC=tanA.tanB.tanC tanA+tanB=tanA.tanB.tanC−tanC tanA+tanB=tanC(tanA.tanB−1) = (tan A + tan B)/ (1-tan A.tan B) = – tan C = tan (A+B) =... View Article
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The highest refractive index among the following is of (a) Glass (b) Diamond (c) Water (d) Pearl
Option (b) Diamond.
Ray florets have (a) Half ovary (b) No ovary (c) Superior ovary (d) Inferior ovary
Answer: Option (d) Inferior ovary. Explanation: Ray florets contain inferior ovaries. The inferior ovary is present in epigynous flowers. Here, the other... View Article
Who wrote panchatantra
Panchatantra is written by the great scholar Vishnu Sharma.
What do you understand by disaster management
Disaster management means the protection of lives and property during times of natural or human-made disasters. Disaster management plays an... View Article
A bank offers 5% compound interest calculated on half-yearly basis. A customer deposits Rs.1600 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:
\(\begin{array}{l}Amount=Rs(1600*(1+frac{5}{2*100})^{2}+1600*(1+frac{5}{2*100}))\end{array} \) \(\begin{array}{l}Amount=Rs(1600*frac{41}{40}*frac{41}{40}+1600*frac{41}{60})\end{array} \) \(\begin{array}{l}Amount=Rs(1600*frac{41}{40}*(frac{41}{40}+1))\end{array} \) \(\begin{array}{l}Amount=Rs(frac{1600*41*81}{40*40})\end{array} \) =Rs 3321 Compound Interest = Rs(3321-3200) = Rs 121
Who has set up the anti-untouchability league for the eradication of the evil of untouchability
Mohandas Karamchand Gandhi, while in jail in 1932 has set up the anti-untouchability league for the eradication of the evil... View Article
The density of nucleus is about 2.3×10^17 kgm-3 and all nucleus have approximately same density. Reason The density of nucleus is independent of mass present in it. (a) Assertion is correct but Reason is wrong (b) Assertion is wrong but Reason is correct (c) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion (d) Both Assertion and Reason are correct and Reason is the correct explanation of Assertion
Option (c) Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
Nocturnal periodicity is exhibited by (a) Rhabditiform larva (b) Microfilaria (c) Ascarsis (d) Yersinia
Option (b) Microfilaria.
9x+3y+12=0 18x+6y+24=0
From the equation, a1=9 b1=3 c1=12 a2=18 b2=6 c2=24 a1/a2=9/18=1/2 b1/b2=3/6=1/2 c1/c2=12/24=1/2 Therefore, a1/a2=b1/b2=c1/c2
Which electronic level would allow the hydrogen atom to absorb a photon but not to emit it?
1s electronic level would allow the hydrogen atom to absorb a photon but not to emit it.
What is meant by term ‘critical angle’? How is it related to the refractive index of the medium?
When the angle of incidence in the denser medium corresponding to which the angle of refraction in rarer medium is... View Article
Which one of the following process will produce hard water (a) Saturation of water with CaSO4 (b) Addition of Na2SO4 to water (c) Saturation of water with CaCO3 (d) Saturation of water with MgCO3
Option (a) Saturation of water with CaSO4 will result in hardwater.
Consider a long solenoid that has length L, average diameter D and n layer of turns. Each layer contains N turns. If current flowing through the solenoid is i the value of magnetic field at the centre : (a) Does not depend on D (b) Proportional to L (c) Proportional to D (d) Inversly Proportional to 2D
Option (a) Does not depend on D.
Which of the following has no skeleton (a) Jelly fish (b) Lizard (c) Moth (d) Butterfly
Option (a) Jelly fish.
De-broglie wavelength of a neutron at 927 degree Celsius is lambda. what will be its wavelength at 27-degree Celsius?
Answer: \(\begin{array}{l}\lambda _{neutron}\alpha \frac{1}{\sqrt{T}}\end{array} \) ⇒ \(\begin{array}{l}\frac{\lambda _{1}}{\lambda _{2}} = \sqrt{\frac{T_{2}}{T_{1}}}\end{array} \) ⇒ \(\begin{array}{l}\frac{\lambda _{1}}{\lambda _{2}} = \sqrt{\frac{273+927}{273+27}}\end{array} \) ⇒... View Article
Arranging data in a specific order is called (a) Verification (b) Sorting (c) Merging (d) Classification
Option (b) Sorting.
Active uptake of minerals by root mainly depends on the (a) Light (b) Availability of carbon dioxide (c) Availability of oxygen (d) Temperature
Option (c) Availability of oxygen.
The slope of the graph between logp and logv at constant temperature for a given (a) 1/T (b) -1 (c) 1/n (d) +1
Option (b) -1.
Which has the maximum conductivity in thier 01m solution (a) [Co(NH3)4Cl]Cl2 (b) [Co(NH3)6]Cl3 (c) [Co(NH3)3Cl3] (d) [Co(NH3)5Cl]Cl2
Option (b) [Co(NH3)6]Cl3.
