List of top Questions asked in Delhi UMET/DPMT- 2009

Resistance of tungsten wire at 150$^{\circ}$C is $133 \Omega$. Its resistance temperature coefficient is $0.0045^{\circ}$C. The resistance of the wire at 500$^{\circ}$C will be
Which one of the following are intracellular obligate parasites?
A galvanometer coil has a resistance of $10 \, \Omega $ and the ammeter shows full scale deflection for a current of $1\,mA$. The shunt resistance required to convert the galvanometer into an ammeter of range $0-100\,mA$ is about
For a first order reaction, the time required for $99.9\%$ of the reaction to take place is nearly
The size of the nucleus of an atom of mass number $A$ is proportional to
The size of pupil is controlled by the
Which of the following reactions involves carbon-carbon bond formation
The critical angle for total internal reflection in diamond is $ 24.5^{\circ} $ . The refractive index of the diamond is
In the change of $NO \, \to\, NO^+$ the electron is added to
For what distance is ray optics a good approximation when the aperture is $4 \,mm$ wide and the wavelength is $500 \,nm$?
An AC voltage is applied to a pure inductor $L$, drives a current in the inductor. The current in the inductor would be
Chlorobenzene is ...... reactive than benzene towards electrophilic substitution and directs the incoming electrophile to the ...... position.
Which of the following reactions involves carbon-carbon bond formation?
Two ice cubes are pressed over each other until they unite to form one block. Which one of the following forces dominates for holding them together ?
A sewage treatment process in which a part of decomposer bacteria present in the waste is recycled into the starting of the process is called
A kingdom common to unicellular animals and plants is
An example for symbiotic bacteria
Nichrome or Manganin is widely used in wire bound standard resistors because of their