List of top Questions asked in BITSAT

Identify the logic operation performed by the following circuit. 
 

A tetrapeptide is made of naturally occurring alanine, serine, glycine, and valine. If the C-terminal amino acid is alanine and the N-terminal amino acid is chiral, the number of possible sequences of the tetrapeptide is: 
 

If the kinetic energy of a free electron doubles, its de-Broglie wavelength changes by the factor:
The correct statement among the following is:
The degeneracy of hydrogen atom that has energy equal to \(-\frac{R_H}{9}\) is (where \( R_H \) = Rydberg constant)
An alkene X on ozonolysis gives a mixture of Propan-2-one and methanal. What is X?
A reverse biased zener diode when operated in the breakdown region works as:
The complex with the highest magnitude of crystal field splitting energy (\(\Delta_0\)) is:
IUPAC name of \( [Pt(NH_3)_2Cl(NH_2CH_3)]Cl \) is:
In normal adjustment, for a refracting telescope, the distance between the objective and eyepiece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be:
The minimum excitation energy of an electron revolving in the first orbit of hydrogen is:
The magnifying power of a telescope is \( 9 \). When adjusted for parallel rays, the distance between the objective and eyepiece is 20 cm. The ratio of the focal length of the objective lens to the focal length of the eyepiece is:

Identify the correct output signal \( Y \) in the given combination of gates for the given inputs \( A \) and \( B \) shown in the figure. 
 

Glycosidic linkage between C\(_1\) of \(\alpha\)-glucose and C\(_2\) of \(\beta\)-fructose is found in:

Identify the logic gate given in the circuit: 


 

In an \( S_{\text{N}2} \) substitution reaction of the type: \[ R - Br + Cl^- \longrightarrow R - Cl + Br^- \]
Which one of the following has the highest relative rate?
Power of a biconvex lens is \( P \) diopter. When it is cut into two symmetrical halves by a plane containing the principal axis, the ratio of the power of two halves is:
The acceptor level of a p-type semiconductor is \( 6 \) eV. The maximum wavelength of light which can create a hole would be: Given \( hc = 1242 \) eV nm.
The energy of the second orbit of a hydrogen atom is \( -5.45 \times 10^{-19} \) J. What is the energy of the first orbit of \( Li^{2+} \) ion (in J)?
In which mode of expression, the concentration of a solution remains independent of temperature?
Cheilosis and digestive disorders are due to deficiency of:
Identify, from the following, the diamagnetic, tetrahedral complex:
In YDSE, monochromatic light falls on a screen 1.80 m from two slits separated by 2.08 mm. The first and second order bright fringes are separated by 0.553 mm. The wavelength of light used is:
A 1 L closed flask contains a mixture of 4 g of methane and 4.4 g of carbon dioxide. The pressure inside the flask at 27\degree C is (Assume ideal behaviour of gases):
The chemical name of calgon is: