JEE Main questions
34495 published questions with worked solutions.
- Match List-I with List-II. List-I: (A) Magnetic induction (B) Magnetic intensity (C) Magnetic flux (D) Magnetic moment List-II:...Not in JEE Advanced syllabus
- The magnetic field inside a 200 turns solenoid of radius 10 cm is 2.9 × 10^ -4 Tesla. If the solenoid carries a current of 0.29...
- A parallel plate capacitor consisting of two circular plates of radius 10 cm is being charged by a constant current of 0.15 A. If...
- A physical quantity Q is related to four observables a, b, c, d as follows : Q = ab^4 cd where, a = (60 ± 3)Pa; b = (20 ± 0.1)m;...
- Two planets, A and B are orbiting a common star in circular orbits of radii R_A and R_B, respectively, with R_B = 2R_A. The...
- Two cars P and Q are moving on a road in the same direction. Acceleration of car P increases linearly with time whereas car Q...
- The calculated spin-only magnetic moments of K_3[Fe(OH)_6] and K_4[Fe(OH)_6] respectively are :
- Statement (I) : In partition chromatography, stationary phase is thin film of liquid present in the inert support. Statement (II)...
- Identify the essential amino acids from below : (A) Valine (B) Proline (C) Lysine (D) Threonine (E) Tyrosine Choose the correct...
- Consider the equilibrium CO(g) + 3H_2(g) CH_4(g) + H_2O(g) If the pressure applied over the system increases by two fold at...
- Statement (I) : NaCl is added to the ice at 0°C, present in the ice cream box to prevent the melting of ice cream. Statement (II)...
- Statement (I) : On nitration of m-xylene with HNO_3, H_2SO_4 followed by oxidation, 4-nitrobenzene-1, 3-dicarboxylic acid is...
- Match List-I with List-II : List-I (Applications): (A) Transistors (B) Hearing aids (C) Invertors (D) Apollo space ship List-II...
- O_2 gas will be evolved as a product of electrolysis of : (A) an aqueous solution of AgNO_3 using silver electrodes. (B) an...
- Identify the homoleptic complexes with odd number of d electrons in the central metal. (A) [FeO_4]^ 2- (B) [Fe(CN)_6]^ 3- (C)...
- Total number of sigma ( ) _____ and pi( ) _____ bonds respectively present in hex-1-en-4-yne are :
- Statement (I): It is impossible to specify simultaneously with arbitrary precision, both the linear momentum and the position of...
- Drug X becomes ineffective after 50% decomposition. The original concentration of drug in a bottle was 16 mg/mL which becomes 4...
- First ionisation enthalpy values of first four group 15 elements are given below. Choose the correct value for the element that...
- Consider the following low-spin complexes K_3[Co(NO_2)_6], K_4[Fe(CN)_6], K_3[Fe(CN)_6], Cu_2[Fe(CN)_6] and Zn_2[Fe(CN)_6]. The...