List of practice Questions

Pick the correct answer from the following two statements:
(a) Virtual image can be seen with the eyes.
(b) Virtual image can be captured on the screen.
The colour which has the highest critical angle of incidence is
The magnifying power of a telescope with tube length 60 cm is 5. Then the focal length of its eye piece is:
A dielectric of dielectric constant $ K $ is introduced such that half of its area of a capacitor of capacitance $ C $ is occupied by it. The new capacity is
When $ 10^{19} $ electrons are removed from a neutral metal plate, the electric charge on it is
If A and B are two matrices such that AB=B and BA=A then A2 + B2 =
State and prove the principle of conservation of angular momentum.
Velocity constant for a first order reaction is \( 2 \times 10^{-3} \, \text{s}^{-1} \). The half-life period for this reaction is
Temperature of a reaction with an activation energy value of 15 kcal mol\(^{-1}\) is increased from 300 K to 310 K. If the value of the ideal gas constant (R) is 1.9872 cal mol\(^{-1}\) K\(^{-1}\), the ratio of the reaction rate constants \(\left(\frac{k_{310}}{k_{300}}\right)\) (rounded off to two decimal places) is ____________.
Answer the following questions:
What is the value of resistance for an ideal voltmeter?
If in a certain language, GRASP is codes as BMVNK, which word could be coded as CRANE?
Prove that, “Angles inscribed in the same arc are congruent.”
The stable pattern of ‘modern men’ formulated by Alex Inkeles does not include ________________.
Find the differential equation of the family of curves \[ y = a \sin(x + b), \] where \( a \) and \( b \) are arbitrary constants.
Consider the Linear Programming Problem:
Minimize 3x1+4x2 +2x3
subject to
x1+x2+x3≤6
x1+2x2+x3≤10
x1,x2,x3≥0.
Then, the number of basic solutions are
Right before her board exam, Sanyuktha’s mother promises to buy her a bike if she scored an overall A+. Sanyuktha scores an A+, but now her mother refuses to buy her a bike. Can Sanyuktha sue her mother?
In an experiment on a circuit, as shown in the figure, the voltmeter shows 8V reading. The resistance of the voltmeter is 
the voltmeter shows 8V reading
What is Pseudo first order reaction? Derive integrated rate law equation for zero order reaction.
Which of the following set is convex?
The modulus of the complex number \(\frac{(1+i)^2(1+3i)}{(2-6i)(2-2i)}\) is
Read the sentence to find out if there is an error and choose the corresponding answer
A. The solution
B. which he provided
C. does not hint the
D. possibility of
E. an alternative answer
Choose the correct answer from the options given below:
Write the chemical equation for the reactions of chlorine with (i) sulphur dioxide, and (ii) turpentine oil.

‘पंचलाइट’ कहानी का सारांश लिखिए।

एक अनार सौ बीमार मुहावरे का अर्थ?

Which strait separates India from Sri Lanka?