Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Precautions : The following must always be observed while dealing with lasers.
1) Never look along a laser beam or expose any part of your skin to it. Beware of reflected laser radiation. (Any surface which reflects light will also reflect a laser.)
Block out any reflected laser light with opaque matt grey screens.
2) Always wear the correct type of goggles for the particular laser being used. A helium-neon laser, for example, gives a red beam, and some lasers generate radiation in the ultraviolet and infra-red regions of the spectrum as well as producing visible light.
Never operate lasers in the dark. The room should always be brightly lit to avoid enlargement of the pupil of the eye.
Warning notices should be set up and the working area should be fenced off.
The laser source should be fixed rigidly to a bench so that the direction of the beam is not altered by accidental movement.
Never align a laser while it is switched on. This alignment should be carried out optically before turning on the source.
Keep laser instruments in a securely locked store room when they are not in use.
Define Primary Transport Primary transport employes energy directly, light or chemical energy is transformed to electrochemical energy as electrochemical potential of the subst
To show how water rises in fine tubes Make some fine hair or capillary tubes by heating glass tubing in a flame and drawing it out. Cut the tubes and glue them to a piece of c
1. The Lennard-Jones potential is given by Where A and B depend on the depth of the potential well and the distance at which potential vanishes. Draw the profile of thi
Holding water in a sieve Pour some oil over the wire mesh of a kitchen sieve and shake out the overload so that the holes are open. Cautiously pour water into the sieve from a
Define Unicellular Organisms and Multicellular Organisms You may be aware that some organisms are made up of only one cell, while others have more than one cell. Well, the sing
Miller's Experiment The above theory could be tested by recreating in the laboratory on a small scale, the conditions which must have existed when life originated on the
what is threshing
Radiation: High doses of radiation are very harmful for human health. Do you know about the disaster ceated by the first atomic bombs which were exploded on two cities of Japa
1. Explain the fundamental scientific principles, including basic principles of chemistry and physics. 2. Give an example that applies scientific principles to the study of zo
INTRODUCTION : You may find this exercise as a practical illustration for the procedure generally followed in the disposal of unserviceable and obsolete items in a laboratory. It
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd