Science Quiz - 10th Standard - Physics - Chemistry - Biology
Physics
In “VIBGYOR”, Which colour has the highest
angle of refraction?
Violet
_______ lenses are used as camera lenses
Convex
Lenses
____ lenses are used as eye lens of ‘Galilean
Telescope’
Concave
Horse Power is equal to _____ watt.
746
Which
brand introduced the first commercial
LED Television.
SONY
The minimum distance between the source and
the reflecting surface should be ____ metres to hear an echo clearly.
17.2
metres
Who named the positive rays as protons?
Rutherford.
The bomb, which was dropped over Nagasaki
was called as___
'Fat
man'.
Chemistry
The boiling point of Ethanol is______
780 C
What is the suffix for -CH2CH3
Ethyl
The chemical name of Epsom salt is ______
Magnesium
sulphate heptahydrate
The pH Value of Sea water is_____
8
pH stands for ‘Potenz’ in German which
means _______
'power'.
Biology
The brain is enclosed in the _______cavity
Cranial
The Wildlife protection Act was established
in ______
1972.
The study of cancer is called ______
Oncology
Leukaemia are otherwise called______
blood
cancers
In the name Diabetes mellitus, mellitus
means _____
Sweet
DNA fingerprinting technique was developed by_____
Alec
Jeffrey.
________ acts as the ‘pacemaker’ of the
heart
Sino-atrial
node
The salivary glands of leech produce an
anticoagulating substance called
hirudin.
__________ prevents the entry of food into
the trachea through the glottis.
The
epiglottis
The gap between the incisors and premolar
is called_______
Diastema
The body of leech is metamerically divided
into ____ segments.
33
________ is known as Father of Plant
Anatomy.
Nehemiah
Grew
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