List of practice Questions

The radius of a cone is 7 m and its height is 10 m. Then its slant height is______
If \(\tan \theta = \cot \theta\) then the value of \(sec\ θ \)=
The angle at tangent to a circle and the radius drawn at the point of contact is
The ratio of volumes of two cones is 4:5 and the ratio of the radii of their bases is 2:3 then the ratio of their vertical height is
If a two digit number is choosen at random then the probability that number choosen is a multiple of 3
P(x)+P("not x") =
If \(\cot \theta = \frac{b}{a}\) then \(\frac{\cos \theta + \sin \theta}{\cos \theta - \sin \theta}\)=
The angle of elevation of the top of a tower, whose height is 100 m, at a point whose distance from the base of the tower is 100 m is
The value of \(\frac{1 - \tan^2 45^\circ}{1 + \tan^2 45^\circ}=\)
Focal length of plano-convex lens of refractive index n and radius of curvature R is
A convex lens form image of an object at infinity. Object is at
Formula used when a light ray enters a medium of refractive index n2 from a medium of refractive index n1 at curved surface with radius of curvature R is
\(4 \Omega, 8 \Omega, R\) resistors are connected in series. Resultant resistance is \(20 \Omega\). Then \(R=?\)
When how much current flows in the fuse, it melts ?
The alloy made of Cu, Mn, Ni is
Conductivity =
Least distance of distinct vision is_____
The resistance of human body varies between
Focal length of a lens is 25 cm. Its power is___
Which one of the following is not a product in the electrolysis of aqueous NaCl ?
Which of the following has highest mass ?
When the equation,\(\text{Na} + \text{H}_2\text{O} \rightarrow \text{NaOH} + \text{H}_2\) is balanced,what is the coefficient for 'Na' ?
The chemical reaction in which heat is absorbed is called
Which of the following is not an inert gas element ?
How many s-block and p-block elements are there in the second period of the modern periodic table ?