Waves are oscillatory movements in water, manifested by an alternate rise and fall of the sea surface. In other words, waves are actually the energy, not the water as such, which moves across the ocean surface. Water particles only travel in a small circle as a wave passes. The maximum wave height is determined by the strength of the wind, i.e. how long it blows and the area over which it blows in a single direction. Waves travel because wind pushes the water body in its course while gravity pulls the crests of the waves downward. The falling water pushes the former troughs upward, and the wave moves to a new position. The actual motion of the water beneath the waves is circular. It indicates that things are earned up and forward as the wave approaches, and down and back as it passes.

 (I) Employment interview Having successfully cleared all the tests related to employment by the candidate, he is called for final interview. The objective is to judge the personality of the candidate, his way of talking, his conduct and temperament, his interest, presence of mind and maturity, etc.

(iI) Selection decision Applicants who clear selection tests, employment interview and reference checks are selected. Prior taking final selection decision, the opinion of concerned manager is sought.
(III)Job offer After successfully clearing, the job offer is given to the selected candidates for job. A date is mentioned in the appointment letter, from which one has to report for the duty.
(IV) Contract of employment After the acceptance of job offer by a selected candidate, he becomes an employee of the organisation. In this phase, appointee signs various documents. Main document among them is the attestation form in which the detailed description of the employee is provided, which he himself attests. This can be used at the time of need in future.

1. It does not differentiate capital and revenue expenses and incomes. This is because it shows transactions of both natures together at the same place without any showcase of difference.
2. It fails to show the transactions on an accrual basis.
3. It does not define any targets making it incapable of showing surpluses and deficits at the end of the year.
4. Receipts and payments account does not show Non-Cash transactions like depreciation of assets, pilferage etc.

• Prove that the line drawn through the center of a circle to bisect a chord is perpendicular to the chord.

Given :-

• O is the center of circle
• AB is chord of circle
• OX bisects AB   i.e.   AX = BX

To Prove :-

• OX ⊥ AB

Explanation :-

➠ In ∆AOX and ∆BOX,

➠ On line AB,

Hence, ∠AXO and ∠BXO form a linear pair

Hence, Proved.

CBSE Class 9 Social Science (087) Deleted Portion:

History - Outline Political Map of India

In History, practice marking important places mentioned in the chapter - Nationalism in India.

Identify the features on the outline political map of India, with the help of the following information and write their correct names on the lines marked near them:

• The place where the Indian National Congress Session was held in December 1920 - Nagpur (Maharashtra)
• The place where the Indian National Congress Session was held in September 1920 - Calcutta (West Bengal)
• The place where the Indian National Congress Session was held in 1927 - Madras (Now known as Chennai in the state of Tamil Nadu)
• The place where the Indian National Congress Session was held in 1929 - Lahore (Pakistan)
• The place where Gandhiji organised ‘Satyagraha’ in favour of cotton mill workers - Ahmedabad (Gujarat)
• The place associated with peasants’ Satyagraha - Kheda  (Gujarat)
• Name the State where the Indigo planters organised Satyagraha - Champran in Bihar
• The City associated with Jallianwala Bagh incident - Amritsar (Punjab)
• The place where Gandhiji violated the salt law - Dandi (Gujarat)
• The place where the Civil Disobedience Movement was started - Sabarmati Ashram (Gujarat)
• The place where Non- Cooperation Movement ended abruptly due to violence - Chauri-Chaura (Uttar Pradesh)

* Correct answer is written against each question. Locate that region on the map.

Geography - Outline Political Map of India

In Geography, practice marking the places famous for steel and iron ore fields, major dam projects, airports, etc. This will not only help you score well in the map-based question but will also help you remember some important geographical details.

Locate and label the following with appropriate symbols on the same given outline political map of India:

Dams

• Salal Project - Jammu and Kashmir
• Tungabhadra Dam - Karnatka
• Rana Pratap Sagar Dam - Rajasthan
• Hirakund Dam - Odisha
• Tehri Dam - Uttrakhand
• Nagarjuna Sagar Dam - Telangana

Iron and Steel Plant

• Bhadravati Iron and Steel Plant - Karnataka
• Vijayanagar Iron and Steel Industry - Karnataka
• Durgapur Iron and Steel Plant - West Bengal
• Bokaro Iron and Steel Plant - Jharkhand
• Jamshedpur Iron and Steel Plant - Jharkhand
• Raurkela Iron and Steel Plant - Odisha
• Bhilai Iron and Steel Plant - Chhattisgarh

Cotton Textile Industry

• Kanpur Cotton Textile Industry - Uttar Pradesh
• Madurai Cotton Textile Industry - Tamil Nadu
• Mumbai Cotton Textile Industry - Maharashtra
• Indore Cotton Textile Industry - Madhya Pradesh
• Ahmedabad Cotton Textile Industry - Gujarat
• Surat Cotton Textile Industry - Gujarat
• Coimbatore Cotton Textile Industry - Tamil Nadu
• Kolkata Software Technology Park - West Bengal

Software Technology Parks

• Gandhinagar Software Technology Park - Gujarat
• Noida Software Technology Park - Uttar Pradesh
• Indore Software Technology Park - Madhya Pradesh
• Jaipur Software Technology Park - Rajasthan

Nuclear Power Plant

• Naraura Nuclear Power Plant - Uttar Pradesh
• Rawat Bhata Nuclear Power Plant - Rajasthan
• Tarapur Nuclear Power Plant - Maharashtra
• Namrup Thermal Power Plant - Assam

Airports:

• Raja Sansi - Amritsar
• Indira Gandhi International - Delhi
• Chhatrapati Shivaji - Mumbai
• Meenam Bakkam - Chennai
• Netaji Subhash Chandra Bose - Kolkata
• Rajiv Gandhi - Hyderabad

Major Sea Ports

• Tuticorin Major Sea Port - Tamil Nadu
• Kochi Major seaport - Kerala
• Kandla Major seaport - Kutch, Gujarat

राज : हेलो यार ! कैसा है तू ?

अब्बास  : यार मैं ठीक ही हूँ। हाँ ,थोड़ा परेशान हूँ ।

राज : क्यों क्या हुआ यार?

अब्बास : देख तुझे तो पता ही होगा भारत में क्या चल रहा है। हर जगह दंगे - फसाद।

राज : हाँ यार।  क्या था हमारा भारत और अब देख क्या हो गया है। हिंदू - मुसलमान आपस में बैर कर रहे हैं।

अब्बास : एकदम सही कहा। वैसे भी कौन -सा

किसी किताब में लिखा है कि मार - काट से सब ठीक हो जाएगा। अल्लाह की नज़र में सभी एक हैं ।

राज : हाँ, वही तो। ये धर्म जाति के नाम पर भेद तो मनुष्य ने ही किया है। ईश्वर तो एक ही है मानने का तरीका अलग है बस।

अब्बास : हाँ, यार । सोच ही खराब हो गई मनुष्य की। उसे यह समझना होगा कि मजहब नहीं सिखाता आपस में बैर रखना।

राज : हाँ वही यार।  सोच सुधारने की आवश्यकता है।

अब्बास : अच्छा अब मैं चलता हूँ यार। भाईजान के साथ मस्जिद जाना है।

राज : अच्छा ठीक है। अपना ध्यान रखना।

Respected Principal,

My family's finance has been severely disrupted. I am in particular concerned about paying the school fees for the next semester. In addition, with the current government restrictions on movements and school closures, FIRST will not be attending school physically in the foreseeable future. Though there are some interactions with teachers through distance learning, the main purpose of going to your esteemed school is unfulfilled. My child failed to receive proper education. This, in turn, has become part-time homeschooling for my child which imposed additional burden on our family. In consideration of this pandemic induced situation, it is with regret that I am seeking the school for assistance in school fees. In particular, I would like to ask the school for a FEES% relief in school fees until the end of the pandemic. I hope to get in touch with you to discuss this matter as soon as possible. I certainly hope that FIRST can continue to study without interruption at your esteemed school and am making plans to cover the school fees after the pandemic. I trust that the relief initiative by the government will provide aid/assistance to the school. I hope to have the opportunity to discuss this issue with you.

• The Harappan seal is possibly the most distinctive artefact of the Harappan or Indus valley civilisation. Made of a stone called steatite, seals like this one often contain animal motifs and signs from a script that remains undeciphered.
• Seals and sealings were used to facilitate long distance communication. If the bag of goods reached with its sealing intact, it meant that it had not been tampered with. Seals also conveyed the identity of the sender.

बजट रेखा उन सभी बंडलों का प्रतिनिधित्व करती है जिन पर उपभोक्ता की संपूर्ण आय व्यय हो जाती है। बजट रेखा की प्रवणता ऋणात्मक होती है। यदि कीमतों या आय दोनों में से किसी एक में परिवर्तन आता है, तो बजट सेट में भी परिवर्तन आ जाता है।

Given-Radius of circle =10cm
length of tape=circumference of circle
so, circumference of circle =2πr
2*3.14*r
2*3.14*10
2*31.4
=62.8cm
therefore, length of tape required to wrap around a circular pipe of radius 10cm is 62.8cm