Archives

The oxygen produced during photosynthesis comes from photolysis of water was the first time proved by a) Malvin Calvin b) Blackman c) Robert Mayer d) Ruben and Kamen

Option d) Ruben and Kamen.... View Article

Fill in the blank with the most appropriate option: By sheer hard work, Sushil has __________ out a niche for himself in the field of engineering. a) Obtained b) Recieved c) Carved d) Worked

Option c) Carved.... View Article

The commercial cork is obtained from a) Teak b) Banyan c) Quercus suber d) Peepal

The commercial cork is obtained from the evergreen oak tree, commonly called Quercus suber or the cork oak. It is used as a cork for wine bottle... View Article

What is the average binding energy per nucleon over a wide range?

The average binding energy per nucleon is the total binding energy divided by the number of nucleons. For Na atom, its binding energy is 194 MeV.... View Article

What type of oxides are formed when non-metals react with oxygen explain with an example

When non-metals react with oxygen acidic oxides or neutral oxides are formed. Example: When hydrogen reacts with oxygen neutral oxide called... View Article

What is the difference between a breed and a species give an example for each

The difference between a breed and a species are<ul>A group of animals related by descent and homogeneous in most characters like... View Article

Water is broken down into its constituent elements ———–and—————

Water is broken down into its constituent elements hydrogen and oxygen when it undergoes the process of electrolysis. Electrolysis of acidified... View Article

The raw material used in the preparation of synthetic fibres is a) Gasoline b) Coal c) Petrol d) Petrochemical

Option d) Petrochemical.... View Article

Multiple root cap occurs in a) Maize b) Gram c) Mango d) Pandanus

Option d) Pandanus. Pandanus is also known as Screw pine. The root cap of this plant features the smooth cap structure found on the root apex for... View Article

A transistor is essentially a) a voltage-operated device b) resistance operated device c) a current operated device d) power-driven device

Option c) a current operated device. A transistor is a current operating device in which the emitter current controls the collector current.... View Article

Indian agriculture is typically characterised as a) land-scarce and labour surplus economy b) land scarce and labour scarce economy c) land surplus and labour scarce economy d) land surplus and labour surplus economy

Option a) land-scarce and labour surplus economy.... View Article

The average kinetic energy of an ideal gas per molecule in SI unit at 25 degree C will be a) 6.17×10−20J b) 7.16×10−20J c) 6.17×10−21kJ d) 6.17×10−21J

Option d) 6.17×10−21J.... View Article

The water found below the water table is called a) Underwater b) Seawater c) Groundwater d) Saltwater

Option c) Groundwater. Groundwater is usually found under the ground in the cracks and spaces in soil, sand, and rock.... View Article

Two identical metal plates are given positive charge Q1 and Q2 (

Option a) (Q1−Q2)/(2C).... View Article

An air bubble in a glass slab with a refractive index of 1.5 (near-normal incidence) is 5 cm deep when viewed from one surface and 3 cm deep when viewed from the opposite face. The thickness (in cm) of the slab is

Given, l = length of the slab x = position of air bubble from one side the total apparent length of slab = 5 + 3... View Article

If the radius of Br− ion is 0.182 nm, how large can a cation be fit in its tetrahedral holes? a) 0.0753 nm b) 0.092 nm c) 0.125 pm d) 0.554 pm

Option a) 0.0753 pm For tetrahedral void, 0.414×0.182 nm =0.0753 nm Hence, we can say the cation of radius 0.0753 nm (maximum) can fit... View Article

The acceleration of a particle as seen from two frames S1 and S2 have an equal magnitude of 5 ms−2. a) The acceleration of frame S2 with respect to S1 be 0 or 10 ms−2 b) The acceleration of frame S2 with respect to S1 lies between 0 and 10 ms−2 c) The frames may be moving with respect to each other but neither should be accelerated with respect to the other. d) The frames must be at rest with respect to each other.

Option b) The acceleration of frame S2 with respect to S1 lies between 0 and 10 ms−2.... View Article

The substance a when dissolved in solvent b shows the molecular mass corresponding to a3. The van”t Hoffs factor will be:

Van't Hoff factor, where i=Normal mol.mass/Observed mol.mass As the solute associates in solution, and gives mass A3 i=A/3A=1/3... View Article

What is a certificate of commencement of business

Commencement of Business Certificate is the official declaration that the Director of the Company needs to file with the Registrar of Companies.... View Article

Sketch and label the figure of the funaria plant

Funaria is a moss genus which belongs to Funariaceae family. Funaria is a plant that grows upto 3–5 cm. Funaria hygrometrica is the most common... View Article

M	T	W	T	F	S	S
			1	2	3	4
5	6	7	8	9	10	11
12	13	14	15	16	17	18
19	20	21	22	23	24	25
26	27	28	29	30	31