NTA JEE Mains 6th April Shift 2 2026

The energy released if hydrogen atoms are combined to form $$^{4}_{2}$$He is __________ MeV. (Take binding energies per nucleon of $$^{2}_{1}$$H and $$^{4}_{2}$$He as 1.1 MeV and 7.2 MeV, respectively)

Angle of minimum deviation is equal to the half of the angle of prism in an equilateral prism. The refractive index of the prism is __________.

Refer to the logic circuit given below. For two inputs $$(A = 1, B = 1)$$ and $$(A = 0, B = 1)$$, output (Y) will be __________.

The velocity at which 6 kg mass (shown in figure) strikes the ground when it is released from a height of 6 m above the ground is __________ m/s. Assume pulley is massless and string is light and inextensible. (Take $$g = 10$$ m/s$$^2$$)

In a Young double slit experiment, the wavelength of incident light is 6000 Å. The separation between slits $$S_1$$ and $$S_2$$ is 5 cm and the distance between slits plane and screen is 50 cm, as shown in the figure below. If the resultant intensity at P is equal to the intensity due to individual slits, the path difference between interfering waves is __________ Å.

A block takes $$t$$ time to slide down a plane inclined at 45° to the horizontal. If the surface is made smooth (frictionless), the block takes time $$\dfrac{t}{2}$$ to slide down the plane. The coefficient of friction between the block and the inclined plane is $$\left(\dfrac{\alpha}{100}\right)$$. The value of $$\alpha$$ is __________.

The de Broglie wavelength for an electron accelerated through the potential difference of $$V_1$$ volt is $$\lambda_1$$. When the potential difference is changed to $$V_2$$ volt, the associated de Broglie wavelength is increased by 50%. If $$(V_1 / V_2) = (9 / \alpha)$$, then the value of $$\alpha$$ is __________.

A moving coil of galvanometer when shunted with 2 $$\Omega$$ resistance gives a full scale deflection for a current of 500 mA. When a resistance of 470 $$\Omega$$ is connected in series it gives a full scale deflection for 10 V potential applied on it. The value of resistance of galvanometer coil is __________ $$\Omega$$.

Two cells of emfs 1 V and 2 V and internal resistance 2 $$\Omega$$ and 1 $$\Omega$$, respectively connected in parallel, gave a current of 1 A through an external resistance. If the polarity of one cell is reversed, then value of current through the external resistance will be $$\dfrac{\alpha}{5}$$ A. The value of $$\alpha$$ is __________.

A concave mirror of focal length 10 cm forms an image which is double the size of object when the object is placed at two different positions. The distance between the two positions of the object is __________ cm.