List of top Questions asked in BITSAT

The color of CoCl₃·5NH₃·H₂O is
What is the correct increasing order of Brønsted bases?
Polymer used in bullet proof glass is
Cobalt (60) isotope is used in the treatment of
A long straight wire along the Z-axis carries a current I in the negative Z-direction. The magnetic vector field vecB at a point having coordinates (x,y) in the Z=0 plane is
The frequency of a sonometer wire is 100Hz. When the weights producing the tension are completely immersed in water, the frequency becomes 80Hz and on immersing the weights in a certain liquid, the frequency becomes 60Hz. The specific gravity of the liquid is
Which of the following pollutants is the main product of automobile exhaust?
The disease caused due to high concentration of hydrocarbon pollutants in the atmosphere is/are
The element with atomic number 118 will be
A constant voltage is applied between the two ends of a uniform metallic wire. Some heat is developed in it. The heat developed is doubled if
A parallel plate capacitor of capacitance C is connected to a battery and is charged to a potential difference V. Another capacitor of capacitance 2C is similarly charged to a potential difference 2V. The charging batteries are now disconnected and the capacitors are connected in parallel to each other in such a way that the positive terminal of one is connected to the negative terminal of the other. The final energy of the configuration is
Vertical displacement of a plank with a body of mass m on it is varying according to law y = sin ω t + √(3)cos ω t. The minimum value of ω for which the mass just breaks contact with the plank and the moment it occurs first after t = 0, are given by
A neutron moving with speed v makes a head-on collision with a hydrogen atom in ground state kept at rest. The minimum kinetic energy of the neutron for which inelastic collision takes place is
A particle of mass 2m is projected at an angle of 45^∘ with the horizontal at a velocity of 20√(2)m/s. After 1s, explosion takes place and the particle is broken into two equal pieces. As a result of explosion, one part comes to rest. The maximum height from the ground attained by the other part is
One of the lines in the emission spectrum of Li²+ has the same wavelength as that of the 2nd line of the Balmer series in hydrogen spectrum. The electronic transition corresponding to this line is n = 12 → n = x. Find the value of x.
A planoconvex lens fits exactly into a planoconcave lens. Their planar surfaces are parallel to each other. If the lenses are made of different materials of refractive indices mu₁ and mu₂ and R is the radius of curvature of the curved surface, then focal length of the combination is
A direct current of 5A is superposed on an alternating current I = 10sin ω t flowing through a wire. The effective value of the resulting current will be
A glass capillary tube of internal radius r = 0.25mm is immersed in water. The top end of the tube is projected by 2cm above the surface of the water. At what angle does the liquid meet the tube? Surface tension of water = 0.7N/m.
Two particles X and Y having equal charges, after being accelerated through the same potential difference, enter a region of uniform magnetic field and describe circular paths of radii R₁ and R₂ respectively. The ratio of masses of X and Y is
Water is flowing on a horizontal fixed surface such that its flow velocity varies with y (vertical direction) as v = k((2y²)/(a²) - (y³)/(a³)). If coefficient of viscosity for water is η, what will be the shear stress between layers of water at y = a?
In an ore containing uranium, the ratio of U²38 to Pb²06 is 3. Calculate the age of the ore, assuming that all the lead present in the ore is the final stable product of U²38. Take the half-life of U²38 to be 4.5 × 10⁹ yr.
The position of a projectile launched from the origin at t = 0 is given by r = (40hati + 50hatj)m at t = 2s. If the projectile was launched at an angle θ from the horizontal (take g = 10m s⁻2), then θ is
The resistance of a wire is R. It is bent at the middle by 180^∘ and both ends are twisted together to make a short of the new wire. The resistance of the new wire is
The resistance of a wire is R. It is bent at the middle by 180^∘ and both the ends are twisted together to make a shorter wire. The resistance of the new wire is
At the corners of an equilateral triangle of side a = 1m, three point charges each of 0.1C are placed. If the system is supplied energy at the rate of 1kW, calculate the time required to move one of the mid-point of the line joining the other two.