Ora serrata is

Ora serreta is:

Retina is most sensitive at 1. In front of ora serrata 2. Fovea centralis 3. Blind spot

A coin is tossed until two heads ora tail is realised specify the 'sample sapce'.

The method chiefly used for the extraction of lead and tin from there oras are respectrively .

The method chiefly used for the extraction of lead and tin from there oras are respectrively .

The process of the isolation of a metal by dissolving the ora in a suitable chemical regent followed by precipitaiton of the matal by a more electropositive metal is called:

The process of the isolation of a metal by dissolving the ora in a suitable chemical regent followed by precipitaiton of the matal by a more electropositive metal is called:

One card is drawn from a well shuffled deck of 52 cards.If each outcome is equally likely, calculate the probability that the card will be (i) a diamond (ii) not an ace (iii) a black card (i.e.,a club or.a spade) (iv) not a diamond (v) not a black card.

Show that the straight lines whose direction cosines are given by the equations a l+b m+c n=0 and u l^2+z m^2=v n^2+w n^2=0 are parallel or perpendicular as (a^2)/u+(b^2)/v+(c^2)/w=0ora^2(v+w)+b^2(w+u)+c^2(u+v)=0.

Show that the straight lines whose direction cosines are given by the equations a l+b m+c n=0 and u l^2+vm^2+wn^2=0 are parallel or perpendicular as (a^2)/u+(b^2)/v+(c^2)/w=0ora^2(v+w)+b^2(w+u)+c^2(u+v)=0.