Sign Up Sign Up

Have an account? Sign In Now

Sign In Sign In

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask question.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Know It Here Logo Know It Here Logo
Sign InSign Up

Know It Here

Know It Here Navigation

  • Home
  • E-BOOK
  • Essay Blog
  • No Answer
  • FAQs
  • Contact
  • About us
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Home
  • E-BOOK
  • Essay Blog
  • No Answer
  • FAQs
  • Contact
  • About us
What's your question?
Anonymous
  • 0
Anonymous
Asked: May 14, 2020

What is the boiling point and freezing point of alchol

  • 0

Read less
  • 2 2 Answers
  • 195 Views
  • 0 Followers
Answer
  1. Neer Sharma LEVEL 1
    Added an answer on May 15, 2020 at 2:06 pm

    Boiling point is 78⁰C and freezing point   is - 117⁰C

    Boiling point is 78⁰C and freezing point   is – 117⁰C

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Anonymous
  • 0
Anonymous
Asked: September 29, 2022In: Physics

If magnetic force does not work on charged particles, how can it have any effect on particle motion?

  • 0

Read less
  • 1 1 Answer
  • 220 Views
  • 0 Followers
Answer
  1. Anish LEVEL 1
    Added an answer on September 29, 2022 at 8:37 pm

    When a charged particle moves on uniform magnetic field (B), it experience a force F as F= Bqv sinΘ, where q is charge particle, v be its velocity and Θ be is angle between B and v. This force is acting toward the motion of the circle or motion is circular. The direction of force F and distance coveRead more

    When a charged particle moves on uniform magnetic field (B), it experience a force F as F= Bqv sinΘ, where q is charge particle, v be its velocity and Θ be is angle between B and v. This force is acting toward the motion of the circle or motion is circular. The direction of force F and distance covered s are always perpendicular to each other such that, work done W = FS cos90 = 0. so, the magnetic force does no work done but moves the particle in circular motion.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Tmg enoch
  • 0
Tmg enochLEVEL 14
Asked: January 15, 2021In: Physics

can X ray diffraction experiment be performed by an ordinary garting? Why?

  • 0

Read less
  • 1 1 Answer
  • 894 Views
  • 0 Followers
Answer
  1. Heman LEVEL 18
    Added an answer on May 6, 2021 at 4:24 pm

    No, X-ray diffraction experiment cannot be performed by an ordinary grating. For diffraction, the grating element must be order of wavelength of light. The X-ray has wavelength of order of (1/100)th of ordinary visible light. So, for diffraction of X-ray crystal grating is needed.

    No, X-ray diffraction experiment cannot be performed by an ordinary grating. For diffraction, the

    grating element must be order of wavelength of light. The X-ray has wavelength of order of (1/100)th of ordinary visible light. So, for diffraction of X-ray crystal grating is needed.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Anishh
  • 0
Anishh
Asked: June 21, 2020In: Physics

Dimensional formula of coefficient of viscosity??

  • 0

Read less
  • 1 1 Answer
  • 277 Views
  • 0 Followers
Answer
  1. knowithere LEVEL 1
    Added an answer on June 22, 2020 at 9:22 am

    Coefficient of viscosity (η)= Fr/Av  F = tangential force, r = distance between the layers v = velocity Dimensional Formula of Force = M1L1T-2 Dimensional Formula of Area= M0L2T0 Dimensional Formula of distance= M0L1T0 Dimensional Formula of velocity= M0L1T-1 form the above equation [η]= [M1L1T-2][MRead more

    Coefficient of viscosity (η)= Fr/Av 

    F = tangential force,

    r = distance between the layers

    v = velocity

    Dimensional Formula of Force = M1L1T-2
    Dimensional Formula of Area= M0L2T0
    Dimensional Formula of distance= M0L1T0
    Dimensional Formula of velocity= M0L1T-1
    form the above equation
    [η]= [M1L1T-2][M0L1T0] / [M0L2T0] [M0L1T-1] = [M1L-1T-1]
    Dimensional Formula of  the Coefficient of viscosity (η)=[M1L-1T-1]
    The SI unit of Coefficient of viscosity (η) is Pascal-second
    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Question Bank
  • 0
Question BankLEVEL 1
Asked: November 9, 2020In: Chemistry MCQs

A colored ion generally indicates a

  • 0

A) transition metal B) metalloid C) large in size D) Both B & C

A) transition metal
B) metalloid
C) large in size
D) Both B & C

Read less
  • 1 1 Answer
  • 154 Views
  • 0 Followers
Answer
  1. knowithere LEVEL 21
    Added an answer on November 15, 2020 at 2:58 pm

    Option A is the correct answer!!! A colored ion generally indicates a transition metal.

    Option A is the correct answer!!!
    A colored ion generally indicates a transition metal.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
knowithere
  • 0
knowithereLEVEL 1
Asked: June 12, 2020In: Biology, Physics

Explain the working mechanism of a Petrol engine with the help of a PV diagram

  • 0

Read less
  • 1 1 Answer
  • 661 Views
  • 0 Followers
Answer
  1. Tmg enoch LEVEL 14
    Added an answer on July 27, 2020 at 1:49 pm

    The engine consist of fixed cylinder and a moving piston  . The expanding combustion gases push the piston , which in turn rotates the crankshaft . After the piston compress the fuel air mixture , the sparks ignites it , causing combustion . The expansion of the combustion  gases pushes the piston dRead more


    The engine consist of fixed cylinder and a moving piston  . The expanding combustion gases push the piston , which in turn rotates the crankshaft . After the piston compress the fuel air mixture , the sparks ignites it , causing combustion . The expansion of the combustion  gases pushes the piston during power stroke.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
knowithere
  • -1
knowithereLEVEL 1
Asked: June 12, 2020In: Physics

A thin equiconvex lens of glass of refractive index 1.5 whose surfaces have a radius of curvature of 24cm is placed on a horizontal plane mirror. When the space between the lens and mirror is lilied with a liquid, a pin tied 40 cm vertically above the lens is found to coincide with its own image. Calculate the refractive index of the liquid. 

  • -1

Read less
  • 1 1 Answer
  • 546 Views
  • 0 Followers
Answer
  1. rohityadav LEVEL 1
    Added an answer on July 12, 2021 at 2:29 pm

    Answer:

    Answer:

    See less
    Attachment

    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Question Bank
  • 0
Question BankLEVEL 1
Asked: December 21, 2020In: Computer MCQs

If you are going to a site you use often, instead of having to type in the address every time, you should_______

  • 0

A) Save it as a file B) Make a copy of it C) Bookmark it D) None of these

A) Save it as a file
B) Make a copy of it
C) Bookmark it
D) None of these

Read less
  • 1 1 Answer
  • 70 Views
  • 0 Followers
Answer
  1. knowithere LEVEL 21
    Added an answer on December 25, 2020 at 12:20 pm

    Option C is the correct answer!!! If you are going to a site you use often, instead of having to type in the address every time, you should Bookmark it.

    Option C is the correct answer!!!

    If you are going to a site you use often, instead of having to type in the address every time, you should Bookmark it.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
knowithere
  • 0
knowithereLEVEL 1
Asked: June 19, 2020In: Biology

Give an example of heterocrine gland.

  • 0

Read less
  • 1 1 Answer
  • 143 Views
  • 0 Followers
Answer
  1. Tmg enoch LEVEL 14
    Added an answer on July 2, 2020 at 10:58 am

    E.g. of heterocrine gland are pancreas and ovaries 

    E.g. of heterocrine gland are pancreas and ovaries 

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
Ragas
  • 0
Ragas
Asked: September 10, 2020In: Chemistry

Organic compound are combustible.why?

  • 0

Read less
  • 1 1 Answer
  • 573 Views
  • 0 Followers
Answer
  1. Sagar poudel LEVEL 1
    Added an answer on September 10, 2020 at 3:16 pm

    Organic compound contains large number of carbon atoms and is made by covalent bond. It is difficult to break bond at ordinary temperature. It requires large amount of heat energy to break the covalent bond. So, organic compound burns in the presence of oxygen and combustion of organic compound is sRead more

    Organic compound contains large number of carbon atoms and is made by covalent bond. It is difficult to break bond at ordinary temperature. It requires large amount of heat energy to break the covalent bond. So, organic compound burns in the presence of oxygen and combustion of organic compound is spontaneous process. Hence, organic compounds are combustible in nature.

    See less
    • 0
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
1 2 … 1,082

Sidebar

Ask A Question

Stats

  • Questions 10k
  • Answers 9k
  • Posts 328
Physics MCQs Test
Chemistry MCQs Test
Mathematics MCQs Test

Adv 250x250

Member

knowithere

knowithere

  • 1k Questions
  • 48k Points
LEVEL 21
Question Bank

Question Bank

  • 5k Questions
  • 22k Points
LEVEL 21
Heman

Heman

  • 55 Questions
  • 9k Points
LEVEL 21
Niraz

Niraz

  • 8 Questions
  • 8k Points
LEVEL 21

Explore

  • Feed
  • Recent Questions
  • Questions For You
  • Most Answered
  • Answers
  • No Answers
  • Most Visited
  • Most Voted
  • Random
  • New Questions
  • Polls
  • Followed Questions
  • Favorites Questions
  • Answers You Might Like
  • Show All Categories

Footer

Know It Here

KNOW IT HERE

know it here is a social questions & Answers Engine which will help you establish your community and connect with other people.

Follow

© 2021. All Rights Reserved
With Love by Know it here.