List of top Questions asked in JEE Main

If the mass defect in a nuclear reaction is \(0.4\) \(gm\) then find the \(Q\) value of the reaction.

Rms velocity of hydrogen at which temperature is equal to that of the oxygen molecule at \(47 \degree\)

Potential energy function corresponding to conservative force is given as  \(U(x, y, z) = \frac{3x^2}{2} + 5y + 6z\) then the force at \(x = 6\) is \(pN\). The value of \(p\) upto \(2\) its nearest integral value is

Stone-cut chariot wheel cravings are from which temple?

What is full form of LEED ?

The concrete mixture is made up of?

What stone is used in Lotus temple?

Who built the Moti Masjid in Red Fort?

Who built Shalimar Bagh?

A thin liquid film formed between a U-shaped wire and a light slider supports a weight of \(1.5 \times 10^{-2}\) \(N\). The length of the slider is \(30\ cm\) and its weight negligible. The surface tension of the liquid film is -

Where is Notre Dame Cathedral?

Whose residence is Downing street?

Where does the President of the USA live?

Why is a beam used in buildings?

The value of $\displaystyle\sum_{r=0}^{22}{ }^{22} C_r{ }^{23} C_r$ is

The straight lines l₁ and l₂ pass through the origin and trisect the line segment of the line L: 9x + 5y = 45 between the axes. If m₁ and m₂ are the slopes of the lines l₁ and l_2, then the point of intersection of the line y = (m₁ + m₂)x with L lies on

Let m1 and m2 be the slopes of the tangents drawn from the point P(4,1) to the hyperbola H : \(\frac{y^2}{25} − \frac{x^2}{16 }\)= 1. If Q is the point from which the tangents drawn to H have slopes |m₁| and |m₂| and they make positive intercepts α and β on the x-axis, then  \(\frac{( P Q ) ^2}{ α β}\) α β is equal to _____.

Let S = {\( x∈(−\frac{ π}{ 2} , \frac{π}{2} )\) : 9^1−tan2 x + 9^tan2 x=10 } and \(β=∑_{ x∈s} t a n ^2 (\frac{ x}{ 3} )\) , then \(\frac{1}{6}\) ( β − 14 )²  is equal to

The work functions of Aluminium and Gold are 4.1 eV and 5.1 eV respectively. The ratio of the slope of the stopping potential versus frequency plot for Gold to that of Aluminium is 

The shortest distance between the lines $\frac{x-2}{3}=\frac{y+1}{2}=\frac{z-6}{2}$ and $\frac{x-6}{3}=\frac{1-y}{2}=\frac{z+8}{0}$ is equal to

For the given YDSE setup. Find the number of fringes by which the central maxima gets shifted from point O.
(Given d = 1 mm D = 1 m λ = 5000 Å)

The length of a seconds pendulum at a height h=2R from earth surface will be :
(Given : R= Radius of earth and acceleration due to gravity at the surface of earth g=π²ms⁻²)

Rank of the word PUBLIC is?

Let 5 digit numbers be constructed using the digits $0,2,3,4,7,9$ with repetition allowed, and are arranged in ascending order with serial numbers Then the serial number of the number 42923 is