1.The pros and cons ( फायदे और नुकसान)
Meaning – Points for and points against 
Example –We’ve been discussing the pros and cons of buying a house.
2.Hale and hearty (तंदुरुस्त)
Meaning – Strong and healthy 
Example – The young infant was hale and hearty. 

3. A narrow escape (बाल – बाल बचना )
Meaning – a situation in which you were lucky because you just managed to avoid danger or trouble
Example – He only just got out of the vehicle before the whole thing blew up. It was a narrow escape. 
4.Build castles in the air
Meaning – To have plans, hopes etc. Which are unlikely to become reality
Example – I really like to sit on the porch in the evening, just building castles in the air.
5.Lead the field (बहुत प्रसिद्ध,   सबसे आगे होना )
Meaning – Very famous, to lead
Example – There are some areas of medical research where Russian scientists still lead the field.
6.Sit on the fence ( चर्चा के दो पक्षों के बीच निर्णय लेने से बचना)
Meaning – Avoid deciding between two sides of an argument, discussion, quarrel etc.
Example – When Jane and Tom argue, it is best to sit on the fence and not make either of them angry. No one knows which of the candidates Joan will vote for. She’s sitting on the fence.
7. Meet one’s Waterloo (अंत में पराजित होना )
Meaning: to meet one’s final and insurmountable challenge
Example: The boss is being very hard on Bill. It seems that Bill has finally met his Waterloo.
8.Put something on the cuff
Meaning: to buy something on credit; to add to one’s credit balance.
Example: I’ll take two of those, and please put them on the cuff.
9. Off-the-cuff (तैयारी के बिना)
Meaning: Without previous thought or preparation.
Example: Her remarks were off-the-cuff, but very sensible.
10. Flesh and blood
Meaning – The human body, the weaknesses, desires, fears etc. that human beings have
Example – his cold weather is more than flesh and blood can stand

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  1. :Wave Phenomena:

    1–Sound waves are longitudinal and mechanical.
    Light slows down, bends toward the normal and has a shorter wavelength when it enters a higher (n) value medium.
    All angles in wave theory problems are measured to the normal.
    Blue light has more energy. A shorter wavelength and a higher frequency than red light (remember- ROYGBIV).
    The electromagnetic spectrum (radio, infrared, visible. Ultraviolet x-ray and gamma) are listed lowest energy to highest.
    A prism produces a rainbow from white light by dispersion (red bends the least because it slows the least).
    Light wave are transverse (they can be polarized).
    The speed of all types of electromagnetic waves is 3.0 x 108 m/sec in a vacuum.
    The amplitude of a sound wave determines its energy.
    Constructive interference occurs when two waves are zero (0) degrees out of phase or a whole number of wavelengths (360 degrees.) out of phase.
    At the critical angle a wave will be refracted to 90 degrees.
    According to the Doppler effect a wave source moving toward you will generate waves with a shorter wavelength and higher frequency.
    Double slit diffraction works because of diffraction and interference.
    Single slit diffraction produces a much wider central maximum than double slit.
    Diffuse reflection occurs from dull surfaces while regular reflection occurs from mirror type surfaces.
    As the frequency of a wave increases its energy increases and its wavelength decreases.
    Transverse wave particles vibrate back and forth perpendicular to the wave direction.
    Wave behavior is proven by diffraction, interference and the polarization of light.
    Shorter waves with higher frequencies have shorter periods.
    Radiowaves are electromagnetic and travel at the speed of light (c).
    Monochromatic light has one frequency.
    Coherent light waves are all in phase.

  2. My brother – in – laws (a) / who live in Mumbai (b) / have come to stay with us. (c)/ No error (d)

  3. No sooner did the thief see the policeman (a)/ that he jumped over the wall (b) / and ran away. (c) / No error (d)

  4. It is our duty (a) / to put off our shoes (b) / before entering the sanctum sanctorum of any temple or mosque. (c) / No error ( d)

  5. b is wrong
    in place of put off it should be pull off
    put off = to extinguish

  6. The only good thing/ about these pens(b) / are their colour and their size.(c)/ No error

  7. ‘Is’ in place of ‘are’. The subject ‘the only good thing ‘ is singular and thus the verb will be singular.

  8. I advised my son (a) / to engage two coolies instead of one (b) / because the luggage was too much heavy for a single coolie. (c)/ No error

  9. Raman was one of those great sons of India(a) / who has earned everlasting fame (b) / for scientific researches. (c)/ NO error

  10. No sooner did the thief see the policeman (a)/ that he jumped over the wall (b) / and ran away. (c) / No error (d)

  11. If I were (a)/ in his shoes (b)/ I would die with shame. (c) / No error (d)

  12. I am vexed (a) / at him about what (b) / he has done. (c)/ No error (d)

  13. He laid for half an hour unconscious (a) / until he was seen (b) / by a passing vehicle .(c)/ No error (d)

  14. (a) : ‘Lay’ in place of ‘laid’. ‘Lay’ is the past indefinite form of ‘lie’.

  15. To die with honour /(a) is better than/(b) live with dishonor / (c).No error (d)

  16. On account of the high land prices we (1) / are set up the factory (2)/ on the outskirts of the city.(3) / No error (4)

  17. Without waiting for (1) / the instructions from the Government, (2) / some cable operators in the city had block the news.(3) /No error (4)

  18. There is (1)/ not enough food (2)/for everybody (3)/, go and buy some more (4)/

  19. here are two examples in the sentence.

    1. "I don’t have enough money."
    Money is a noun, so it comes after enough.

    2. "I will never be rich enough."
    Rich is an adjective so it comes before enough.

    Let’s look at the two rules:

    1. Enough + noun e.g. "There is not enough food for everybody, go and buy some more."
    2. Adjective + enough e.g. "He is not tall enough to play basketball."

  20. . India needs a value education system (1) / who will inculcate values (2) / among the students and (3) / enrich their personalities. (4) / No error (5)

  21. Spotting Error is in (2). Replace relative pronoun who by which because non-living thing has been used

  22. Recent survey shows that (1) / 35 million children in the age group of (2) / 6 to 10 years have never (3) / attended no primary school. (4) / No error (5)

  23. Spotting Error is in (4). Here never is in negative. So, attended any primary school is correct

  24. Coal mines constitute (1) / a major percentage of the (2) sources which cause damage (3) / on the environment. (4) / No error (5)

  25. Spotting Error is in (4). Damage takes preposition to. So, replace on the environment by to environment.

  26. . A man who has been (1) / accused of fraud in (2) / an earlier job he will never be (3)/ welcome in any other organization. (4) / No error (5)

  27. Spotting Error is in (3). Here he (pronoun) is superfluous. So remove he.

  28. The average of 3 numbers is 154. The first number is twice the second and the second number is twice the third. The first number is-

    a. 264
    b. 132
    c. 88
    d. 66

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