Class 12th

Seven friends Jai, Kishan, Gopal, Pritam, Pranay, Sumit and Sohan went on vacations to Goa, Paris, Tokyo, Bangladesh and Andaman & Nicobar Island. They traveled by air, sea or over land. All vacations took place between January and May. No two people went on vacation the same place at the time. However, two people went on vacation at two places.

I. In March and May two vacations took place. Also, two vacations were in Bangladesh.

II. Four people travelled over land. Two people travelled by ship. One person took a flight.

III. Kishan was not the first to go. He travelled over land.

IV. Pranay did not go in May. He went to Goa, whic

0 Follower 1 View

Contributor-Level 10

We are not certain about Kishan and Sohan as either of them could have visited Bangladesh. We know that Sumit definitely went to Tokyo, but he is not among the given options.

0 0

New answer posted

8 months ago

I. In March and May two vacations took place. Also, two vacations were in Bangladesh.

II. Four people travelled over land. Two people travelled by ship. One person took a flight.

III. Kishan was not the first to go. He travelled over land.

IV. Pranay did not go in May. He went to Goa, whic

0 Follower 1 View

Contributor-Level 10

From the table in the solution to the first question of the set, we see that Gopal went on a vacation in May.

0 0

New answer posted

8 months ago

Class 12th Physics

Two cells of same emf but different internal resistance r₁ and r₂ are connected in series with a resistance R. The value of resistance R, for which the potential difference across second cell is zero, if:

0 Follower 4 Views

Raj Pandey

Contributor-Level 9

Given

$I = \frac{2 E}{R = r_{1} + r_{2}}$

E₁ = E₂ = E - (i)

Potential drop across second cell is

$V_{A} - E_{2} + I r_{2} = v_{B}$

According to question VA – VB = 0

E2 lr2 = 0

$\Rightarrow R = r_{2} - r_{1}$

0 0

New answer posted

8 months ago

Directions for questions: Read the information carefully and answer the questions given below.

I. In March and May two vacations took place. Also, two vacations were in Bangladesh.

II. Four people travelled over land. Two people travelled by ship. One person took a flight.

III. Kishan

0 Follower 1 View

Contributor-Level 10

Month	Person	Destination	Mod e
January	Pranay	Goa	Land
Februar y	Sumit	Bangladesh	Land
March	Kishan/Sohan	Bangladesh	Land
March	Jai	Andman & Nicobar	Air

		island
April	Pritam/Sohan	Paris	Sea
May	Kishan/Pritam	Goa	Land
May	Gopal	Tokyo	Sea

From the above table we get that Jai visited Andman & Nicobar island.

From table, we get that Pranay went Goa for vacation.

0 0

New answer posted

8 months ago

Directions for questions: Read the information carefully and answer the questions given below.

P1, P2, P3, P4, P5, P6 and P7 are seven members of a family. There are two married couples among them belonging to two different generations. Each of them like different Fast food – Pizza, Burger, Momos, Sandwich, Burito, Fried Chicken and Donuts. The grandfather in the family likes Fried Chicken. None of the ladies likes Burger or Momos. P4 is son of P1 who likes Pizza. P7 is P3's daughter-in-law and she likes Burito. P2 is grandfather of P6 who likes Sandwich. P3 is mother of P5 who likes Burger.

How many female members a

0 Follower 10 Views

Class 12th Physics Electrostatic Potential and Capacitance

Contributor-Level 10

0 0

New answer posted

8 months ago

Two metallic plates form parallel plate capacitor. The distance between the plates is 'd'. A metal sheet of thickness $\frac{d}{2}$ and of area equal to area of each plate is introduced between the plates. What will be ratio of the new capacitance to the original capacitance of the capacitor?

0 Follower 4 Views

Raj Pandey

Contributor-Level 9

$Δ v = \int \vec{E} . d \vec{x}$

$Δ v = \frac{σ}{\in o} \frac{d}{2}$

$C_{N e w} = \frac{Q}{Δ v} = \frac{σ A 2 \in o}{σ d} = \frac{2 \in o A}{d}$

$C_{N e w} = 2 {\begin{array}{l} C \\ o r i g i n a l \end{array}}_{}$

$\frac{C_{N e w}}{C_{O r i g i n a l}} = 2 : 1$

0 0

New answer posted

8 months ago

N1, N2, N3, N4, N5, N6, N7 and N8 are eight reference books to be kept on three shelves: lowest, middle or top. The reference books are of four different subjects: Physics, Chemistry, Biology and History two reference books of each subject. No two reference books of same subject are kept on one shelf. Also

I. N1 is above N4 ; N7 is below N2 ; N5 is below N6 and N8 is below N3.

II. Top shelf has no Biology's reference books; middle shelf has no Physics' reference books and lowest shelf has no Chemistry's reference books.

III. N5 and History's reference books are not together; N8 and Chemistry's reference books are not together; N6

0 Follower 2 Views

Contributor-Level 10

Please find the answer below

0 0

New answer posted

8 months ago

Directions for questions: Read the information carefully and answer the questions given below.

I. N1 is above N4 ; N7 is below N2 ; N5 is below N6 and N8 is below N3.

II. Top shelf has no Biology's reference books; middle shelf has no Physics' reference books and lowest shelf has no Chemistry's reference books.

III. N5 and

0 Follower 6 Views