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A Driver Takes 0.20s To Apply The Brakes After He Sees A Need For It. This Is Called The Reaction Time Of The Driver. If He Is Driving A Car At A Speed Of 54km/H And The Brakes Causes A Deceleration Of 6.0 M/2, Find The Distance Traveled By The Car After He Sees The Need To Put The Brakes On.

Sol: The initial speed of the var is 54 km/hr or 15 m/s. In reaction time the body moves with the speed 54 km/hr = 15 m/sec Distance travelled... View Article

The Equation Of The Latus Rectum Of The Hyperbola frac (x-4)2/16 – frac(y-3)2/2 = 1 Are____. (A) x = 1 ± 5.(B) y = 2 ± 6.(C) x = 4 ± 6.(D) y = 3 ± 5.

The correct answer is (C) x = 4 ± 6. We are given the hyperbola Where: a = 4 and b = Explore more such questions and answers at BYJU’S.... View Article

What Is The Mass Of A Positron?

The mass of a positron is equal to the mass of an electron. The positron is the antiparticle counterpart of the electron. Explore more such... View Article

In The Structure Of Clf3 The Number Of lone pairs of electrons on central atom Cl is ____.(A) One.(B) Two.(C) Three. (D) Four

The correct answer is (B) Two Explore more such questions and answers at BYJU’S.... View Article

What Was The Capital Of Kalyani Chalukyas?(A) Badami. (B) Kanchi. (C) Kalyana. (D) Madurai.

The correct answer is (C) Kalyana. Western Chalukya Empire ruled most of South India, between the 10th and 12th centuries. This dynasty is also... View Article

The Compound Which Is Used For Removing Permanent Hardness Of Water Is_______ (A) Na2CO3.10H2O. (B) NaHCO3. (C)Na2CO3. (D) CuSO4.5H2O.

The correct answer is (A) Na2CO3.10H2O. Na2CO3.10H2O is commonly known as washing soda and is used for removing the permanent hardness of the... View Article

Yellow Colour Of Faeces Is On Account Of ______.(A) Bile secretion.(B) Excessive diet of turmeric.(C) Green colour of bile juice.(D) Degradation product of haemoglobin.

The correct answer is (D) Degradation product of haemoglobin. Explore more such questions and answers at BYJU’S.... View Article

Outstanding Expenses Is Shown On The _______Side Of The Balance Sheet(A) Assets. (B) Liability. (C) Both A and B. (D) None Of These

The correct answer is (B) Liability. Explore more such questions and answers at BYJU’S.... View Article

Mitral Valve Is The Other Name Of ______________(A) Bicuspid valve. (B) Tricuspid valve. (C) Valve found in vena cava. (D) Valve found at the base of dorsal aorta

The correct answer is (A) Bicuspid valve. Mitral valve is the other name of the Bicuspid valve. The bicuspid valve is the opening between the... View Article

Mention The Condition Favouring Ionic Bond Formation

The conditions favouring ionic bond formation are: The lower Ionisation energy of metals. Higher Electron affinity of non-metal The higher... View Article

A Sum Of Money Invested At 8% Per Annum For Simple Interest Amounts To Rs 12122 In 2 Years. What Will It Amounts To In 2 Year 8 Months At 9% Rate Of Interest?

Given: Amount = Rs 12122 Time period, t = 2 years Rate of interest, r = 8% Amount = Principal + Interest... View Article

Define: (1) Tyndall Effect (2) Brownian Movement

The Tyndall effect is the phenomenon in which the particles in a colloid scatter the beams of light that are directed at them. The Brownian... View Article

Pitch-blende Is The Source Of Some Metals. Find The Total No. Of Such Metals Among These: Hg, Ra, U, Th, Zn, Tc

The total number of metals present in pitchblende is 3 - U, Ra, Th. Pitchblende is also called uraninite, which is black in colour, like... View Article

Give Reason All Bonds In Sf 4 Are Not Equivalent

The five electron pairs around sulphur and adopt trigonal bipyramidal geometry in which one position is occupied by a lone pair. This lone pair... View Article

Expansion And Contraction In Demand Are Caused By________.(A) Change In Income.(B) Change In Population.(C) Change In Price Of A Commodity.(D) Change In Prices Of Related Goods.

The answer is (C) Change In Price Of A Commodity. Explore more such questions and answers at BYJU’S.... View Article

Which of the following are among the fundamental duties as listed in the Constitution? (1) To abide by the Constitution. (2) To preserve the heritage of our composite culture. (3) To render national service when called upon to do so. (4) To strive for excellence in scientific research to win international fame. (A) 1 and 2. (B) 1, 2 and 3. (C) 2 and 4. (D) 2, 3 and 4.

The answer is (B) 1, 2 and 3. Explore more such questions and answers at BYJU’S.... View Article

What Is The State Or Regional Political Party?

The state or regional political party refers to the parties that take care of people living within the respective regions, fulfil their... View Article

The Radii Of Two Circles Are 8cm And 6cm Respectively. Find The Radius Of The Circle Having Its Area Equal To The Sum Of The Areas Of The Two Circles.

Let the radius of the required circle is r cm. Therefore, = 64 + 36 = 100 r =10 cm Explore more such questions and answers at... View Article

Find the square of 3a – 4b.

The formula used is given below.... View Article

The cost of 5 kg of wheat is Rs. 91.50. What quantity of wheat can be purchased in Rs. 183?

Rs. 91.50 - 5 kgRs. 1 - (5 / 91.5) kgRs. 183 - (5 / 91.5) * 183= 10 kg... View Article

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