Subject Related

the quantity of charge required to obtain one mole cu from cuo.



I want to know about what is cosmos, show out your knowledge

The two slits of young double slit experiment are separated by a distance of 0.03mm. An interference pattern on the screen is 1.5 m away. The fourth fringe is at distance of 1 m from the central maximum. Calculate wavelength of light used.

can you explain what is periodic table?

Of the four major causes for the loss of biodiversity (alien species invasion, habitat loss, fragmentation, over-exploitation, and co-extinctions which according to you is the major cause for the loss of biodiversity? Give reasons in support.

Mention the product and its use produced by each of the microbes listed below:

(i) Streptococcus

(ii) Lactobacillus

(iii) Saccharomyces cerevisiae

A steel and brass wire, each of length 50 cm and cross-sectional area 0.005 cm2 hang from ceiling and are 15 cm apart. Lower ends of the wires are attached to a light horizontal bar. A suitable downward load is applied to the bar so that each of the wire extends in length by 0.1 cm. At what distance from the steel wire the load must be applied?



1. a. 75 cm
2. b. 5 cm
3. c. 10 cm
4. d. 3 cm

The bob of a swinging second's pendulum (one whose time period is 2s) has a small speed v0 at its lowest point. Its height from this lowest point, 2.25s after passing through it is

1. a. v02/2g
2. b. v02/g
3. c. v02/4g
4. d. gv02/4g

• gradual and predictable change in species composition occurs in a given area
• the establishment of new biotic community is very fast in its primary phase
• the number and types of animals remain constant
• the changes leads to the community that is near eqillibrium with the environment and is called pioneer community

an association of individuals of different species living in the same habitat and having functional interaction is:

• ecological niche
• biotic community
• ecosystem
• population

#organismandpopulation

earthworm pioneer species succession detritivore ecosystem service natality population growth pollination [ignore]

• ectoparasitism
• symbiosis
• commensalism
• ammensalism

A biologist studied the population of rat in barn he found that the average natality was 250, average mortality 240, immigration 20 and emigration 30 the net increase in population is

• 10
• 15
• 5
• zero