// //]]>

Question & Answer Forum

Next time you have a doubt while studying, you know where to go. By simply posting your questions on Question & Answer Forum, you can have them answered by academic experts. You can also find related videos and explanations for better understanding.

Can’t find a match Ask?

Syeda answered 1 year(s) , 4 month(s) ago

Give more exercises on edition and omission

1. a) on - at
 b) has - had c) for -  of
 d) at - by     e) at- in
f) from - since
g) for - till
h) over - during
i) on - after

2. word before    ...

Asked by Bhuvaneswary

Sep 11

  • 6 Answers
  • 48 Likes
  • 273499 Views
Syeda answered 1 year(s) , 4 month(s) ago

Name any 20 unisexual and bisexual flowers.

Sol:

There are bisexual flowering plants and unisexual flowering plants. They are separate from bisexual flowers and unisexual flowers. But is this information of names so necessary? Anyway here...

Asked by Keerthana

Dec 1

  • 7 Answers
  • 29 Likes
  • 163342 Views
Syeda answered 1 year(s) , 4 month(s) ago

What is the difference between convex and concave mirrors and lens ?

MIRRORS
(1) The reflecting surface of the concave mirror is bulged inwards. But the reflecting surface of the convex mirror is bulged outwards.
(2) Concave mirror produces real and inverted imag...

Asked by Shruti

Nov 27

  • 7 Answers
  • 20 Likes
  • 123196 Views
Agam answered 1 year(s) , 1 month(s) ago

Explain the life cycle of silk moth?

Ans: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.
Life cycle of a silk moth :


1. Egg →2.First stage of larvae→3.Second stage...

Asked by Sneha

Apr 30

  • 3 Answers
  • 10 Likes
  • 76813 Views
Syeda answered 1 year(s) , 4 month(s) ago

Define the following:- (a) Center of curvature (b) Radius of curvature (c) Pole (d) principal axis (e) Principal focus (f) Focal length

Answer.

(a) Centre of curvature is the centre of the sphere of which the spherical mirror is a part. 

(b) Radius of curvature is the linear distance between the pole and the cen

...

Asked by Chandan

Sep 24

  • 2 Answers
  • 10 Likes
  • 75776 Views
Sai Vijay answered 1 year(s) ago

What is the difference between clinical and labratory thermometer?

Clinical thermo meter:  This thermometer is used in Clinics to measure the temperature of human body.
 A clinical thermometer has a temperature range of only 35ºC to 42°C.
...

Asked by Sagar

Aug 7

  • 30 Answers
  • 21 Likes
  • 70692 Views
Syeda answered 1 year(s) , 4 month(s) ago

Life cycle of silk moth

Ans: Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk.
Life cycle of a silk moth:


1. Egg →2.First stage of larvae→3.Second stage...

Asked by Rohit

Feb 17

  • 4 Answers
  • 15 Likes
  • 60897 Views
Syeda answered 1 year(s) , 4 month(s) ago

Rest and motion are relative terms. Explain

Answer:  Rest and motion are the relative terms because they depend on the observer’s frame of reference.
If an observer is at rest in his or her own frame of reference, but he may be

...

Asked by Maaz

Sep 1

  • 2 Answers
  • 3 Likes
  • 44018 Views
Syeda answered 1 year(s) , 4 month(s) ago

write any three uses of concave mirror.

Write any three uses of concave mirror
 
Answer:  Uses of concave mirrors: 

  1. Concave mirror are used as reflectors in automobile headlight
...

Asked by Sumaiya

Dec 3

  • 42 Answers
  • 27 Likes
  • 40581 Views
Syeda answered 1 year(s) , 4 month(s) ago

Difference between primary and secondary cells

  • A primary cell cannot be recharged whereas a secondary cell can be recharged.
  • In a primary cell chemical reaction is irreversible whereas in a secondary cell chemical reaction is reversibl
...

Asked by Chandan

Nov 4

  • 3 Answers
  • 1 Like
  • 39524 Views
Navneet answered 10 month(s) , 15 day(s) ago

why is it not good to sleep under a tree at night?

During the day, in presence of sunlight, the plants use up the CO 2 and release O 2 in the process of photosynthesis. But during night, plants won’t perform photosynthesis so they are un...

Asked by Naman

Sep 8

  • 15 Answers
  • 10 Likes
  • 39278 Views
Syeda answered 1 year(s) , 4 month(s) ago

Explain how does an electric bell work.

When an armature or iron is in contact with screw the current flows though the coil which becomes an electromagnet .As,a result it gets pulled towards the magnet .The hammer at the end of the strip of the gong...

Asked by Reenasha

Sep 16

  • 4 Answers
  • 6 Likes
  • 38861 Views
Syeda answered 1 year(s) , 4 month(s) ago

Difference between density and relative density?

The ratio between density of a substance and density of water is called relative density.



  1. The ratio between density of a substance and density of water is call

...

Asked by Omm

Jun 14

  • 3 Answers
  • 2 Likes
  • 36396 Views
Syeda answered 1 year(s) , 3 month(s) ago

WHAT IS VILLI ? WHAT IS IT'S FUNCTION AND LOCATION?

The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, are present numerous blood vessels wh...

Asked by Dev

Oct 6

  • 3 Answers
  • 10 Likes
  • 34717 Views
Syeda answered 1 year(s) , 4 month(s) ago

What is the difference between Shadow and Image?

Answer.

Shadows are black, whereas images are colourful. Shadows of objects placed in the sun change in length with the position of the sun through the day. Your shadow will be at its longest at...

Asked by Chandan

Oct 29

  • 5 Answers
  • 2 Likes
  • 32340 Views
Syeda answered 1 year(s) , 4 month(s) ago

How are nutrients replenished in the soil?

Nutrients are replenished by certain different microorganism that are found in the soil or also by the death of certain plants such as the rhizobium plant. The decaying plants tend to slowly break down into the...

Asked by Anshul

Apr 13

  • 3 Answers
  • 5 Likes
  • 32200 Views
Arpita answered 4 year(s) , 4 month(s) ago

Wool production.

there are six steps by which wool is obtained form sheep. Step 1: shearing The process of removing hair from the body of a sheep is called shearing Step 2: scouring The process of washing the fleece of sheep to...

  • 2 Answers
  • 5 Likes
  • 31571 Views
Agam answered 10 month(s) , 28 day(s) ago

Due to increase in the price of sugsr by 25%, by how much percent must a householder

If the price of a commodity increases by R%, then the reduction in consumption so as not to increase the expenditure is
Here R% = 25%
Hence % decrease in the consumption of sugar

Asked by Snehil

Aug 19

  • 2 Answers
  • 3 Likes
  • 30608 Views
Syeda answered 1 year(s) , 3 month(s) ago

A Sells a bicycle to B at a profit of 20% and B sells it to C at a profit of 25%

Let the cost price of the bicycle for A be Rs x
Given A sells the bicycle at a profit of 20%

This becomes the CP for B.
Hence CP of bicycle for B = (6x/5)
Given B sells...

Asked by Vineet

Jul 30

  • 15 Answers
  • 6 Likes
  • 29115 Views
Syeda answered 1 year(s) , 4 month(s) ago

Difference between convex mirror and convex lens and difference between concave lens and concave mirror

Answer.


convex lens
A convex mirror is opaque whereas a convex lens is transparent.
A convex mirror causes reflection of light whereas a convex lens cau...

Asked by Sanjeev

Nov 7

  • 3 Answers
  • 0 Like
  • 28770 Views
Like NextGurukul? Also explore our advanced self-learning solution LearnNext
Offered for classes 6-12, LearnNext is a popular self-learning solution for students who strive for excellence
Explore
Animated Video
lessons
All India
Test Series
Interactive Video
Experiments
Best-in class
books

Join India's most happening

Educational community