(a) Remains unchanged
(b) Oscillates
(c) Gets compressed
(d) Gets expanded
Answer:
Which of the following device is full duplex
(a) Loudspeaker
(b) Radio
(c) Mobile phone
(d) Walky-talky
Answer:
The primary goal of a computer is to turn data into
(a) Information
(b) Picture
(c) Ideas
(d) Reports
Answer:
Which of following refers to the fastest, biggest and most expansive computer?
(a) Laptop
(b) Note book
(c) Personal computer
(d) Super computer
Answer:
What type of device is a computer printer?
(a) Storage
(b) Input
(c) Output
(d) Software
Answer:
The father of modern chemistry is
(a) Mendeleef
(b) Dalton
(c) Priestley
(d) Lavoisier
Answer:
The most abundant metal in earth crust is
(a) Aluminium
(b) Calcium
(c) Iron
(d) Magnesium
Answer:
The activity of radiosotope change with
(a) Chemical environment
(c) Temperature
(c) Pressure
(d) None of these
Answer:
Blue litmus paper is changed into blue in solution of
(a) Alkali
(b) Acid
(c) Salt
(d) Base
Answer:
The first attempt to classify elements was made by
(a) Dobereiner
(b) lother-mayer
(c) Mendeleev
(d) Newland
Answer: