Explanation

Incorrigible means not able to be corrected or reformed.

It describes someone whose bad behavior continues despite all efforts to change it.

Incorrigible means نااہل

Bad beyond correction means اصلاح سے پرے خراب

Explanation

Wreak means to inflict or bring about (as in revenge or punishment).

The chess master promised to wreak revenge for the loss of his bishop.

Explanation

A boulevard is a wide, important city street — similar in meaning to an avenue.

Boulevard means ایک وسیع ، اہم شہر کی گلی

Avenue means ایک وسیع ، اہم شہر کی گلی

Explanation

Grudgingly shows the secretary agreed unwillingly because she disagreed morally.

Abide by correctly means to accept or follow the president’s decision.

Explanation

"If I am lying, the curse of Allah be on me and may I be drowned in some period. May I even be deprived of a decent burial!"

The correct verb is lying (not laying) because it means telling a falsehood.

The correct preposition is of — “deprived of” is the proper phrase.

Explanation

From vector relations= |A × B| = AB sinθ and A.B = AB cosθ.

Dividing them gives tanθ = |A × B|/A.B.

Explanation

Explanation

Efficiency n = Output Power/Input Power × 100.

If output power is half of input power, n = 1/2 × 100 = 50%.

Explanation

Negative sign shows decrease in speed (retardation).

Magnitude of angular retardation = π rad/s².

Explanation

At the speed of light, time dilation becomes infinite according to Einstein’s relativity.

This means the moving observer would see the clock as if time has stopped.