NSO Level 1- Science Olympiad (SOF) Class 10: Questions 925 - 929 of 986

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Question number: 925

» Acids, Bases and Salts

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match both the columns and mark the correct option from the codes given below.

List-Ⅰ (Column I) List-Ⅱ (Column II)

(A)

Appy fizz

(i)

6.7

(B)

Blood

(ii)

3.5

(C)

Pond Water

(iii)

8.2

(D)

Milk

(iv)

7.4

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (i)
  • (ii)
  • (iv)

b.

  • (ii)
  • (iv)
  • (iii)
  • (i)

c.

  • (iv)
  • (i)
  • (ii)
  • (iii)

d.

  • (i)
  • (ii)
  • (iv)
  • (iii)

Question number: 926

» Acids, Bases and Salts

Edit
MCQ▾

Question

Read the given statements and mark the correct option.

Statement 1: pH of hydrochloride acid solution is less than that of Lemon juice solution of the same concentrate.

Statement 2: Pure alcohol has a less pH value then water.

Choices

Choice (4) Response

a.

Only statement 2 is Correct

b.

Only statement 1 is Correct

c.

Question does not provide sufficient data or is vague

d.

None of the above

Passage

Directional: Read the passage carefully and the answer the below two question

Optical fibers are generally composed of silica, with an index of refraction around

Question number: 927 (1 of 2 Based on Passage) Show Passage

» Light - Reflection and Refraction

Edit
MCQ▾

Question

How long will it take for that light to travel from St. Petersburg, Florida to Anchorage, Alaska?

Choices

Choice (4) Response

a.

20.2 s

b.

39 s

c.

29.2 s

d.

32 s

Question number: 928 (2 of 2 Based on Passage) Show Passage

» Light - Reflection and Refraction

Edit
MCQ▾

Question

How fast does light travel in a silica fiber?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 929

» Magnetic Effects of Electric Current

Edit
MCQ▾

Question

A circular loop placed in a plane perpendicular to the plane of paper carries a current when the key is ON. The current as seen from points A and B (in the plane of paper and on the axis of the coil) is anti-clockwise and clockwise respectively. The magnetic field lines point from B to A. The N-pole of the resultant magnet is on the face close to

The magnetic field lines point from B to A

The Magnetic Field Lines Point from B to A

The magnetic field lines point from B to A

Choices

Choice (4) Response

a.

2

b.

3

c.

4

d.

1