y = 3 is………..
a) {2,3}
b) {5,0}
c) {0, 0}
d) { }
Explanation: The lines y = 2 and y = 3 are parallel horizontal lines. Since they are parallel, they will never intersect. Therefore, there are no common points between the lines, and the solution set is empty, represented by {}.
Participation of students in co-curriculum activities is_______
a) Necessary
b) Waste of time
c) Mandatory
d) Privilege
Atomic number is represented by Z: it stands for:
a) Zog
b) Zwri
c) Zahi
d) Zwolt
Explanation: The atomic number is represented by the symbol Z. It stands for the term "Zahl," which is the German word for "number." The atomic number of an element corresponds to the number of protons in the nucleus of its atoms. It is a fundamental property that uniquely identifies each element on the periodic table.
Which of the following is an insulator?
a) Glass
b) Copper
c) Aluminum
d) Silver
Explanation: Glass is an example of an insulator. Insulators are materials that do not easily conduct electricity or heat. They have high electrical resistance and low thermal conductivity. Glass is widely used as an insulating material in various applications, such as in windows, electrical insulation, and laboratory equipment.
The needle in the compass is always directed toward:
a) South
b) North
c) West
d) East
Explanation: A compass is an instrument that uses a magnetic needle to indicate direction. The needle of a compass is magnetized and aligned with the Earth's magnetic field. One end of the needle is marked as the north-seeking pole, and it points towards the Earth's magnetic north pole.
I wish I _____ to go to dentist tomorrow.
a) hadn’t had
b) did not have
c) do not have
d) have not
