List of practice Questions

If the ratio of corresponding sides of two similar triangles is 2:3, then the ratio of areas of these triangles is:
If \(\triangle ABC\) is a right triangle right angled at \(C\) and let \(BC = a\), \(CA = b\), \(AB = c\) and let \(p\) be the length of perpendicular from \(C\) on \(AB\), then:
A tangent to a circle touches it in _________________________ point(s).
If \(A\), \(B\), and \(C\) are interior angles of triangle \(ABC\), then the value of \(\cos \left( \frac{A + B}{2} \right)\) is:
The value of \(\cos 54^\circ \cos 36^\circ - \sin 54^\circ \sin 36^\circ\) is:
Two dice are thrown at the same time. What is the probability that the sum of the two numbers appearing on the top of the dice is 13?
Which of the following is not a formula for arithmetic mean?
Mode of the data 9, 10, 19, 7, 11, 5, 6, 7, 8, 14, 10, 7, 6 is
In a grouped frequency distribution, the formula to find median is
The mirror which always gives diminished image is
The midpoint of a thin lens is called
The current in a conductor is directly proportional to the potential difference between its ends at constant temperature. This is known as
Kirchhoff's junction law is based on conservation of
The instrument to measure potential difference is
The magnetic flux passing through unit area taken perpendicular to the uniform magnetic field is called
The direction of the magnetic field lines outside the current carrying solenoid is from
In electric motors
Quantum mechanical model of the atom was developed by
Maximum no. of electrons in a subshell is equal to
Number of unpaired electrons present in carbon atom is
Double bond present in
The colour of methyl orange indicator in basic solution is
Which one of the following is used for disinfecting drinking water?
The metal that occurs in the free form (native) is
Galena is an ore of