NCERT NOTES

2021-06-09 10:51:38 Stay away from people who...

1) Pull you down.
2) Don't support you.
3) Don't respect you.
4) Lie to you. Open / Comment

2021-06-06 11:47:15 Life is as precious to us as it is for an animal. An animal is as loving, caring, and kind to her children as we are. She might not be able to tell us but she can express it through her eyes and expressions. She feels joy and happiness. She is helpless in our cruel hands and vulnerable to our vicious greed. Let us be kind to animals. Let us learn to feel their pain. Can we kill a helpless baby to feed our greed? Then how can we kill helpless animal friends that can’t talk? Often we kill just for fun. How funny would it be if an animal killed a human just for fun? Let us be kind to animals as much as possible. I know we can. It is easier to love an animal than a human being. If you love an animal, it will rarely hurt you. Let us practice kindness and compassion to animals so that we may create a peaceful world. Open / Comment

2021-06-06 11:45:58 How do flies walk on the ceiling?

Flies can walk upside down! They can do this because of their sticky feet.

A fly has foot pads that are covered in tacky glue.

To unstick their feet so they can walk anywhere, the fly uses tiny foot claws to push or twist themselves away. Open / Comment

2021-06-06 05:22:13 Complete problems in Chemistry By Shree Balaji Publication

VK Jaiswal Inorganic Chemistry

https://learners-planet-premium.blogspot.com/2021/05/problems-in-inorganic-chemistry-for.html

N Avasthi Physical Chemistry

https://learners-planet-premium.blogspot.com/2021/06/n-avasthi-physical-chemistry-balaji.html

MS Chauhan in Organic Chemistry

https://learners-planet-premium.blogspot.com/2021/05/elementary-problems-in-organic.html Open / Comment

2021-06-05 12:52:11 Companies & Their Founder

1. Walmart के संस्थापक कौन है ?
Answer - सैम वॉल्टन (Sam Walton) 1962

2. Paytm के संस्थापक कौन है ?
Answer - विजय शेखर शर्मा (2010)

3. Google के संस्थापक कौन है ?
Answer - लैरी पेज, सर्फ ब्रिन (1998)

4. Microsoft के संस्थापक कौन है ?
Answer - बिल गेट्स, पॉल एलन (1975)

5. WhatsApp के संस्थापक कौन है ?
Answer - ब्रायन ऐक्टन ,जैन कौम (2009)

6. Amazon के संस्थापक कौन है ?
Answer - जैफ बेजोस (Jef bez0s) 1994

7. Flipkart के संस्थापक कौन है ?
Answer - सचिन बंसल और बिन्नी बंसल (2007)

8. Yahoo के संस्थापक कौन है ?
Answer - David filo, Jerry yang (1994)

9. Apple के संस्थापक कौन है ?
Answer - स्टीव जॉब्स (1976)

10. Wikipedia के संस्थापक कौन है ?
Answer - जिमी वेल्स (2001)

11. Motorola के संस्थापक कौन है ?
Answer - Paul & Joseph Gablin (1928)

12. Facebook के संस्थापक कौन है ?
Answer - मार्क जुकरबर्ग (2004)

13. Alibaba के संस्थापक कौन है ?
Answer - जैक मा (1999)

14. Nokia के संस्थापक कौन है ?
Answer - Fredrik Idestam, Leo Mechelin

15. Reliance के संस्थापक कौन है ?
Answer - धीरूभाई अम्बानी (1997)

16. Ebay के संस्थापक कौन है ?
Answer - Pierre Omidyar (1995)

17. Twitter के संस्थापक कौन है ?
Answer - जैक डॉर्स (2006)

18. Instagram के संस्थापक कौन है ?
Answer - केविन सिस्ट्रोम, माइक करिजर (2010)

19. YouTube के संस्थापक कौन है ?
Answer - Jawed KarimStee Chen (2005)

20. Skype के संस्थापक कौन है ?
Answer - Niklas Zennstrom Janus Friis (2003)

21. Tesla के संस्थापक कौन है ?
Answer - एलोन मस्क (2003)

22. Intel के संस्थापक कौन है ?
Answer - गॉर्डन मूरे (1968)

23. Samsung के संस्थापक कौन है ?
Answer - Lee Byungchul (1938)

24. Xiaomi के संस्थापक कौन है ?
Answer - Lie Jun (2010) Open / Comment

2021-06-05 06:29:50 Open / Comment

2021-06-05 06:29:49 Open / Comment

2021-06-04 13:02:01 1. Work = force × distance
कार्य = बल × दूरी

2. Energy = force × distance
ऊर्जा = बल × दूरी

3. Speed = distance / time
गति = दूरी / समय

4. Velocity= displacement / time
वेग = विस्थापन / समय

5. Electric field = electrical force/charge
विद्युत क्षेत्र= वैद्युत बल/आवेश

6. Force = force/area
प्रतिबल=बल/क्षेत्रफल

7. Volume = length × width × height
आयतन = लंबाई × चौड़ाई × ऊंचाई

8. Mass density = mass/volume
द्रव्यमान घनत्व =द्रव्यमान/आयतन

9. Acceleration =velocity / time
त्वरण = वेग / समय

10. Power = work / time
शक्ति = कार्य / समय

11. Pressure = force / area
दाब =बल/क्षेत्रफल

11. Momentum = mass × velocity
संवेग = द्रव्यमान × वेग

13. Area (A) = Length × Width
क्षेत्रफल ( A ) = लम्बाई × चौड़ाई

14. Force (F) = Mass × Acceleration
बल ( F ) = द्रव्यमान × त्वरण

15. Pressure Energy = Pressure × Volume
दाब ऊर्जा = दाब × आयतन

16. Impulse = force × time
आवेग = बल × समय

17. Linear momentum = mass × velocity
रैखिक संवेग = द्रव्यमान × वेग

18. Kinetic energy = 1/2 mv²
गतिज ऊर्जा = 1/2 mv²

19. Mechanical energy = kinetic energy + potential energy
यांत्रिक ऊर्जा = गतिज ऊर्जा + स्थितिज ऊर्जा

20. Angular momentum = Inertial × Angular velocity
कोणीय संवेग = जड़त्वाघूर्ण × कोणीय वेग Open / Comment

2021-06-04 09:36:36 STATEHOOD DAY

ANDHRAPRADESH-- 1/OCT/1953

ARUNACHAL PRADESH-- 20/FEB/1987

ASSAM-- 26TH JANUARY 1950

BIHAR-- 22/MARCH/ 1912

CHHATTISGARH-- 1/NOV

GOA-- 30/MAY/1987

GUJARAT-- 1/MAY

HIMACHAL PRADESH-- 15/APRIL

HARYANA-- 1/NOV

JAMMU & KASHMIR-- 26/OCT

JHARKHAND-- 15TH NOV 2000

KARNATAKA-- 1/NOV

KERALA-- 1/NOV/1956

MANIPUR-- 21ST JANUARY

MIZORAM-- 20TH FEB

MEGHALAYA-- 21 JANUARY 1972

MADHYA PRADESH-- 1ST NOV

MAHARASHTRA-- 1 MAY

NAGALAND-- 1ST DEC

ODISHA-- 1ST APRIL

PUNJAB-- 15TH AUGUST

RAJASTHAN-- 30TH MARCH

SIKKIM-- 16TH MAY- 44TH

TAMILNADU-- 26TH JANUARY

TELANGANA-- 2ND JUNE 2014

TRIPURA-- 21TH JANUARY 1972

UTTARAKHAND-- 9TH NOV 2000

UTTARPRADESH-- 24TH JANUARY 1950

WEST BANGAL-- 26TH JANUARY

Comment From Which State You Are Open / Comment

2021-06-04 09:34:56 ​​How Do Chameleons Change Colors?

The outermost layer of the chameleon's skin is transparent. Beneath this are several more layers of skin that contain specialized cells called chromatophores. The chromatophores at each level are filled with sacs of different kinds of pigment. The deepest layer contains melanophores, which are filled with brown melanin (the same pigment that gives human skin its many shades). Atop that layer are cells called iridophores, which have a blue pigment that reflects blue and white light. Layered on top of those cells are the xanthophores and erythrophores, which contain yellow and red pigments, respectively.

Normally, the pigments are locked away inside tiny sacs within the cells. But when a chameleon experiences changes in body temperature or mood, its nervous system tells specific chromatophores to expand or contract. This changes the color of the cell. By varying the activity of the different chromatophores in all the layers of the skin, the chameleon can produce a whole variety of colors and patterns.

For instance, an excited chameleon might turn red by fully expanding all his erythrophores, blocking out the other colors beneath them. A calm chameleon, on the other hand, might turn green by contracting his erythrophores and allowing some of the blue-reflected light from his iridophores to mix with his layer of somewhat contracted yellow xanthophores. Open / Comment