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Ravishek Anand 3 years, 3 months ago

NCERT Solutions for Class 10 Chapter 10 Image 7 The image is located at a distance of 6 cm from the mirror on the other side of the mirror. The positive and a value of less than 1 of magnification indicates that the image formed is virtual and erect and diminished. 13. The magnification produced by a plane mirror is +1. What does this mean? Answer- The positive sign means an image formed by a plane mirror is virtual and erect. Since the magnification is 1 it means that the size of the image is equal to the size of the object. 14. An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image. Answer- Object distance (u) = – 20 cm Object height (h) = 5 cm Radius of curvature (R) = 30 cm Radius of curvature = 2 × Focal length R = 2f f = 15 cm According to the mirror formula, NCERT Solutions for Class 10 Chapter 10 Image 8 The positive value of image height indicates that the image formed is erect. Hence, the image formed is erect, virtual, and smaller in size. 15. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed so that a sharply focused image can be obtained? Find the size and nature of the image. Answer- Object distance (u) = – 27 cm Object height (h) = 7 cm Focal length (f) = – 18 cm According to the mirror formula, NCERT Solutions for Class 10 Chapter 10 Image 9 The negative value of image height indicates that the image formed is inverted. 16. Find the focal length of a lens of power -2.0 D. What type of lens is this? Answer- Power of lens (P) = 1/f P = -2D f = -1/2 = -0.5 m A concave lens has a negative focal length. Therefore, it is a concave lens. 17. A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging? Answer- Power of lens (P) = 1/f P = 1.5D f = 1/1.5 = 10/15 = 0.66 m A convex lens has a positive focal length. Therefore, it is a convex lens or a converging lens.

ANSWER

Why was Anne Frank disturbed even when she had loving parents, relatives and friends ?

Posted by Itz__Kritika Koli 🖤 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

3 answers

Chinki 🦋👈🏻 3 years, 3 months ago

Bcoz she had no true friend with whom she could share her feelings....

Anushka 4321 3 years, 3 months ago

Cuz she didn't anyone whom she can a true friend and with whom she can share her feeling without being judged.

4Thank You

Itz__Kritika Koli 🖤 3 years, 3 months ago

Anne Frank was disturbed even after being surrounded by so many people because she didn't have any true friend.

4Thank You

ANSWER

What seems on the surface (dairy of Anne Frank)

Posted by Itz__Kritika Koli 🖤 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

What is the nick name of Matilda friend mme forestier

Posted by Anshu Yadav 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Anshu Yadav 3 years, 3 months ago

Jeanne

ANSWER

agenda 21 kya hai?

Posted by Jyoti Kumari 3 years, 3 months ago

CBSE > Class 10 > सामाजिक विज्ञान

5 answers

Riya Kasana 3 years, 2 months ago

YouTube pur dak lo

Shubham Singh 3 years, 3 months ago

agenda 21 ek ghosna patra hai jise 1993 ke prithvi sammelan me lagu kiya kya

Dileep Raman 3 years, 3 months ago

सामाजिक विज्ञान का पेपर भेंजे

Dileep Raman 3 years, 3 months ago

सामाजिक विज्ञान

Dhaval Bhavaya 3 years, 3 months ago

Wikipedia

ANSWER

You are sa

Posted by Sai Kiran 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

What happen when metals are burnt in air

Posted by Prajwal K 3 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Vani Singh 3 years, 2 months ago

They formed metal oxide

Siddharth Singh 3 years, 3 months ago

They Form Metal Oxides by reacting with O² present in the air . For Eg :- 2Mg+0²=2Mgo

H I M A N S H U ... 3 years, 3 months ago

The metal convert into metal oxide due to the presence of oxygen present in the atmosphere

Vansh Singh 3 years, 3 months ago

Metallic Oxides are formed as metals react with oxygen present in air.

ANSWER

fill in the blanks using suitable words. when I was at University,I................ hiking every weekend

Posted by Eklavya Kumar Singh Eklavya Singh 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

4 answers

Manika Sharma 3 years, 3 months ago

Omya Aryan 3 years, 3 months ago

Was

Vaishnavi 10 3 years, 3 months ago

B.Priyanka Sai 3 years, 3 months ago

did

ANSWER

What are demand deposit and their advantage?

Posted by Dipanshoo Sharma Class 9Th A1 3 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Q.Z Khan 3 years, 3 months ago

Demand deposit basically means that if we have deposit money in banks or any formal sector we can withdraw our money according to our wish aur our demand ...

ANSWER

SinA + CosA = √2 Then, tanA + CotA= ?

Posted by Iron Man 3 years, 3 months ago

CBSE > Class 10 > Science

3 answers

K.Haniskha💖💖🥰 Kandi☺️ 3 years, 3 months ago

2 is the correct answer

Student Student 3 years, 3 months ago

Shreya Gupta 3 years, 3 months ago

SinA=√2 - cosA Perpendicular =√2 - cosA Hypotenuse = 1 H^2=P^2+B^2 1^2=(√2 - cosA)^2+ B^2 1=√2^2+CosA^2 - 2×√2×CosA + B^2 1=2+cos^2A - 2√2cosA + B^2 -1=cos^2A - 2√2cosA+ B^2 B^2=-1- cos^2A + 2√2cosAB B=√(-1- cos^2A + 2√2cosAB) tanA + CotA= ? TanA=P/B= √2 - cosA/√(-1- cos^2A + 2√2cosAB) CotA=B/P √(-1- cos^2A + 2√2cosAB)/√2 - cosA tanA + CotA= ? √2 - cosA/√(-1- cos^2A + 2√2cosAB) + √(-1- cos^2A + 2√2cosAB)/√2 - cosA

ANSWER

Character sketch of Mme Loisel

Posted by Mohd Saad 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

Sangatkar ke Madhyam se Kavi kis Prakar ke vyaktiyon ki or Sanket karna chah raha hai

Posted by Lavanya Verma 3 years, 3 months ago

CBSE > Class 10 > हिंदी ए

0 answers

ANSWER

Sin + Cos = under root 3 prove that tan theta + cot theta is equals to 1

Posted by Ankush Rathod 3 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Harsh Goel 3 years, 3 months ago

ANSWER

Amliye okside kese kahete hai

Posted by Neha Mishra 3 years, 3 months ago

CBSE > Class 10 > विज्ञान

1 answers

Fazil__Bhai__307 Fazil__Bhai__307 3 years, 2 months ago

i am genius

3Thank You

ANSWER

What happened in Amritsar on 13th April 1919?

Posted by Sindu Dakua 3 years, 3 months ago

CBSE > Class 10 > Social Science

5 answers

Iffa Tabraiz 3 years, 3 months ago

On 13 April 1919 , it was the day of baisakhi people of Amritsar gathered in jallian wala bagh to celebrate baisakhi and to protest against the rowlatt act general came with his millitary and without giving warning he ordered firing on the unarmed and the peaceful people this incidence is known as jallianwala bagh Massacre

Khushi Yadav 3 years, 3 months ago

On 13th April 1919,a large crowd gathered in the anclosed ground of jallian walla bagh in amritsar

Arunika Sharma 3 years, 3 months ago

Jallianwala Bagh Massacre

Iron Man 3 years, 3 months ago

General Dyer open fire on people that gathered for celebrating Baisakhi.

Aditya Kumar 3 years, 3 months ago

Jallianwala Bagh massacre

ANSWER

What is non cooperation movement ? 5 mark

Posted by Prathibhan Prathibhan 3 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Chhama Awana 3 years, 3 months ago

The Non-cooperation movement was a political campaign launched on 4 September 1920, by Mahatma Gandhi to have Indians revoke their cooperation from the British government, with the aim of inducing the British to grant self-governance.

ANSWER

State the properties of magnetic field ines

Posted by Muskan Manjhi 3 years, 3 months ago

CBSE > Class 10 > Science

4 answers

Shagun Sood 3 years, 3 months ago

Magnetic field lines appear to emerge or start from the north pole and merge or terminate at the south pole. Inside the magnet, the direction of the magnetic field lines is from the south pole to the north pole. Magnetic field lines never intersect with each other. Magnetic field lines form a closed-loop.

Siddharth Singh 3 years, 3 months ago

Some Properties of magnetic field lines are :- 1) They Never Intersect each other . 2) Originate from north pole and end at south Pole. 3)The More curves will be there in magnetic field lines the stronger will be it's magnetic field. 4)They Are like Closed Curves,As they end at a point . 5)They are crowded at the poles that is why there is maximum magnetic attraction 🧲 at The poles

Mahi Yadav 3 years, 3 months ago

1 They travel North Pole to South Pole outside the magnet and South Pole to North Pole inside the magnet. 2 They are closed and continues curves.

Prajwal K 3 years, 3 months ago

1. They r parallel 2. Never meet each other 3.Magnetic force is maximum at the poles 4. They flow from south pole to North pole

ANSWER

Nenere is the information is acquired in neurons?

Posted by Saran Saran 3 years, 3 months ago

CBSE > Class 10 > Science

1 answers

Prabhroop Kaur 3 years, 3 months ago

ANSWER

What is the difference between secularism and secular state??

Posted by Aarushi Shetty 3 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Omya Aryan 3 years, 3 months ago

Secularism means freedom to follow any religion whereas secular state means the country is not having any national religion and treating every religion with equality.

ANSWER

How women's are discriminated under family law?

Posted by Rashi Choure 3 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Chhama Awana 3 years, 3 months ago

An unequal marriage The woman is the homemaker and assumes a subordinate status within marriage. She is the repository of cultural norms of the family and community. However, there is no recognition of this unequal status between the spouses within matrimonial laws.

ANSWER

Life is free of trials and tribulations which can be overcome by a human being through his own efforts . Explain with reference to kisa gotami's life

Posted by Dhruv . 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

రామాయణం అంటే ఏమిటి

Posted by Lc4832 S 3 years, 3 months ago

CBSE > Class 10 > Regional Language

4 answers

K.Haniskha💖💖🥰 Kandi☺️ 3 years ago

రామాయణం భారతీయ వాఙ్మయంలో ఆదికావ్యంగాను, దానిని సంస్కృతం లో రచించిన వాల్మీకి మహాముని ఆదికవిగాను సుప్రసిద్ధం. సాహిత్య చరిత్ర ప్రకారం రామాయణ కావ్యం వేద కాలం తర్వాత, అనగా సుమారు సా.శ. పూ.1500 లో దేవనాగరి భాష అనబడిన సంస్కృతం భాషలో రచించబడినది.. రామాయణం కావ్యంలోని కథ త్రేతాయుగం కాలంలో జరిగినట్లు వాల్మీకి పేర్కొన్నాడు. భారతదేశం లోని అన్ని భాషల యందు, అన్ని ప్రాంతాలనందు ఈ కావ్యం ఎంతో ఆదరణీయం, పూజనీయం

Bapaiah Chowdary Daggubati 3 years, 1 month ago

Jyothi Seenu 3 years, 2 months ago

Lifestyle

Aadhithiya Nagul 3 years, 2 months ago

https://youtu.be/eOkhUdtRm4M

ANSWER

In which country there is more dominance of women?

Posted by Rashi Choure 3 years, 3 months ago

CBSE > Class 10 > Social Science

1 answers

Rajesh Das 3 years, 3 months ago

Indian

5Thank You

ANSWER

Theme of proposal

Posted by Waseem Ahmed 3 years, 3 months ago

CBSE > Class 10 > English Language and Literature

0 answers

ANSWER

What is a soil erosion??

Posted by Chhama Awana 3 years, 3 months ago

CBSE > Class 10 > Social Science

2 answers

Prince Bro 3 years, 3 months ago

The dendudation of the soil cover and subsequent washing down is called soil erosion

Dhruv . 3 years, 3 months ago

Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. Soil deterioration and low water quality due to erosion and surface runoff have become severe problems worldwide.