The function of fertilization memberane is
1. Which of the following is not a conductor?
2. If two charged bodies of +2q, -5q are brought in contact, total charge of the system is
3. The unit of electric potential is
4. A toaster operating at 240V has a resistance of 120 ohm. The power is
5. When n resistors of equal resistance (R) are connected in series, the effictive resistance is
6. The electric current is an external circuit flows from the
Which of the following devices does not allow d.c. to pass through?
An AC generator converts ........... into electric energy
Trains use
The physical properties of electromagnetic waves are determined by their
________ are used for treatment of cancer
If the wavelength of light is reduced to one half of its initial value then the amount of scattering is
In an X-Ray tube the intensity of emmitted X - ray beam is increased by
LASER is used in Brain and Eye surgery because
The principle used in Hydrogen bomb is
GM counter is used to measure the _____________ of the radioactive radiation.
Neutrons are constituent of all nuclei except
The device which converts AC to DC is called
The gate which has one input and one output is
Among the following elements which has heigher Electron Affinity value
The percentage of gold in 18 carat gold is
Silver amalgam is employed in
Which of the lanthanide is radioactive
In the nuclear reaction U238 ----> Pb 206 , the number of alpha and beta particles emitted are
92 82
Radiation which has the least penetration power is
Iodine 131 has half life period of 8 days, 20mCi of cample containing Iodine 131 is reduced to 5 mCi in
Pure Silicon and Germanium are
When a liquid boils there is
What is the condition for contact process
What type of colloid is smoke
Metals conduct electric current due to the movement of
Energy changes taking place during electroplating process is
I dentify the chiral molecule among the following
Which one is optically inactive amino acid
What will be the product when grignard reagent reacts with ketone followed by hydrolysis?
When diethy ether is exposed to air the product formed is
Formaldehyde polymerises to give
Which one of the following is used to remove stains of iron from cloths
Identify antispasmodic among the following