1

JEE Main 2021 (Online) 27th August Evening Shift

Numerical

+4

-1

Wires W

_{1}and W_{2}are made of same material having the breaking stress of 1.25 $$\times$$ 10^{9}N/m^{2}. W_{1}and W_{2}have cross-sectional area of 8 $$\times$$ 10^{$$-$$7}m^{2}and 4 $$\times$$ 10^{$$-$$7}m^{2}, respectively. Masses of 20 kg and 10 kg hang from them as shown in the figure. The maximum mass that can be placed in the pan without breaking the wires is ____________ kg. (Use g = 10 m/s^{2})Your input ____

2

JEE Main 2021 (Online) 26th August Morning Shift

Numerical

+4

-1

A soap bubble of radius 3 cm is formed inside the another soap bubble of radius 6 cm. The radius of an equivalent soap bubble which has the same excess pressure as inside the smaller bubble with respect to the atmospheric pressure is ................ cm.

Your input ____

3

JEE Main 2021 (Online) 27th July Evening Shift

Numerical

+4

-1

The water is filled upto height of 12 m in a tank having vertical sidewalls. A hole is made in one of the walls at a depth 'h' below the water level. The value of 'h' for which the emerging steam of water strikes the ground at the maximum range is ________ m.

Your input ____

4

JEE Main 2021 (Online) 27th July Morning Shift

Numerical

+4

-1

A stone of mass 20 g is projected from a rubber catapult of length 0.1 m and area of cross section 10

(Young's modulus of rubber = 0.5 $$\times$$ 10

^{$$-$$6}m^{2}stretched by an amount 0.04 m. The velocity of the projected stone is ______________ m/s.(Young's modulus of rubber = 0.5 $$\times$$ 10

^{9}N/m^{2})Your input ____

Questions Asked from Properties of Matter (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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