List of top Questions asked in NEET (UG)- 2004

In a p–n junction photocell, the value of the photo electromotive force produced by monochromatic light is proportional to
The Bohr model of atoms
The output of OR gate is 1
A coil of 40 henry inductance is connected in series with a resistance of 8 ohms and the combination is joined to the terminals of a 2-volt battery. The time constant of the circuit is
One mole of an ideal gas at an initial temperature of T K does 6 R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 35 , the final temperature of gas will be
A battery is charged at a potential of 15V for 8 hours when the current flowing is 10A. The battery on discharge supplies a current of 5A for 15 hours. The mean terminal voltage during discharges is 14 V. The "Watt-hour" efficiency of the battery is

Five equal resistances each of resistance R are connected as shown in the Figure. A battery of V volts is connected between A and B. The current flowing in AFCEB will be

A battery of V volts is connected between A and B

A galvanometer of 50 ohm resistance has 25 divisions. A current of 4 × 10–4 ampere gives a deflection of one division. To convert this galvanometer into a voltmeter having a range of 25 volts, it should be connected with a resistance of
A 6 volt battery is connected to the terminals of a three metre long wire of uniform thickness and resistance of 100 ohm. The difference of potential between two points on the wire separated by a distance of 50 cm will be:
Lanthanoids are
Which of the following forms cationic micelles above certain concentration ?
Which of the following does not have a metal-carbon bond
Which one of the following is a chain growth polymer
A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid
Which of the following is considered to be an anticancer species
If the bond energies of H–H, Br – Br and H –Br are 433, 192 and 364 kJ mol–1 respectively the ∆Hº for the reaction H2(g) + Br2(g) \(\rightarrow\)2HBr(g)
Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere
Among the following, the pair in which the two species are not isostructural is
Which one of the following structures represents the peptide chain
Which one of the following can be oxidised to the corresponding carbonyl compound
Camphor is often used in molecular mass determination because
Number of chiral carbons in β–D–(+)– glucose is
The helical structure of protein is stabilized by
H2O is dipolar, whereas BeF2 is not. It is because
Ionic radii are