Question
Which of the following glass absorbs ultraviolet rays
which are harmful for the eyes?Solution
Potash glass are used for chemical apparatus, breakers, flasks, funnels. Optical glass is used for making lenses, prisms and optical instruments like telescopes and microscopes. Crystal glass are used to make decorative items. Crooks glass used to diminish the harmful ultraviolet rays.
Which Key is the example of Toggle key.
Which of the following allows user authentication through fake identity?
What is the base of the Octal number system?
Which of the following is the least secure method of authentication?
One Terabyte (1 TB) is equal to?
Which key is used to refresh a webpage?
What is object of UPS?
What is the technology used to read marks on multiple-choice answer sheets?Â
Who invented email?
A _____________ is a number of Internet-connected systems, where each of them is running one or more bots