Which of the following represent correct values for the normal atmospheric pressure?
A. 101.3 kilopascals
B. 76 mm of mercury
C. 101.3 pascals
D. 76 cm of mercury
(a) A and B
(b) B and C
(c) A and D
(d) B and D
At sea level, the value for normal atmospheric pressure is $760\ mm$ of a tall column of mercury or $101.3\ kPa$.
So, option (c) A and D is correct.
Related Articles
- The magnitude of atmospheric pressure is equal to the pressure exerted by a:$(a)$. 76 mm tall column of mercury$(b)$. 760 mm tall column of alcohol$(c)$. 76 cm tall column of mercury$(d)$. 760 cm tall column of mercury
- Which of the following are contact forces?A. Friction B. Gravitational forceC. Magnetic forceD. Muscular force$(a)$. A and B$(b)$. B and C $(c)$. A and D$(d)$. B and D
- Incomplete combustion of coal and petroleum :(A) increases air pollution.(B) increases efficiency of machines.(C) reduces global warming.(D) produce poisonous gases. The correct option is :(a) (A) and (B) (b) (A) and (D) (c) (B) and (C) (d) (C) and (D)
- Which of the following change appreciably when a batsman hits a moving cricket ball?A. ShapeB. DirectionC. SizeD. Speed(a) A and B(b) B and C(c) A and C(d) B and D
- Which of the following plants are non-flowering and reproduce by the method of spore formation?a. Sweet potato b. Asparagus c. Ferns d. Mosses(a) Only a and b(b) Only a and c(c) Only a and d(d) Only b and c(e) Only c and d
- A student measured the pH values of four solutions A, B, C and D which were found to be 4, 1, 13 and 11 respectively. Which of the following statements are correct about these solutions?(a) A is strong acid and B is weak acid (b) B is strong acid and D is weak base (c) D is strong base and C is weak base (d) C is strong base and A is weak acid (1) (a) and (b) (2) (b) and (c) (3) (c) and (d) (4) (b) and (d)
- A water tank has four taps fixed at points A, B, C and D as shown in figure. The water will flow out at the same pressure from taps at$(a)$. B and C $(b)$. A and B $(c)$. C and D $(d)$. A and C"
- The atomic number of four elements A, B, C and D are 12, 13, 15 and 3 respectively. The element which cannot form a cation is :(a) A (b) B (c) C (d) D
- The elements A, B, C and D belong to groups 1, 2, 14 and 17 respectively of the periodic table. Which of the following pairs of elements would produce a covalent bond?(i) A and D(ii) C and D(iii) A and B(iv) B and C(v) A and C
- Which of the following is a type of nutrition?(a) Autotrophic nutrition(b) Saprotrophic nutrition(c) Heterotrophic nutrition(d) All a, b and c are correct
- Points $A(3,1), B(5,1), C(a,b)$ and $D(4,3)$ are vertices of a parallelogram ABCD. Find the values of $a$ and $b$.​
- The number a and b are co-primes, the LCM of a and b is(a) 1 ;(b) a (c) a $+$ b (d) ab
Kickstart Your Career
Get certified by completing the course
Get Started