Universal gravitational constant, universal gas constant and …….. Are some of the ………… constant.

Answer

To solve the question, we need to identify the constants mentioned and categorize them appropriately. Here’s a step-by-step solution:

### Step 1: Identify the Constants
The question mentions two constants:
1. Universal Gravitational Constant (G)
2. Universal Gas Constant (R)

### Step 2: Understand the Nature of the Constants
Both G and R are known to be constants used in physics. We need to find another constant that fits the same category.

### Step 3: Find Another Constant
A well-known constant that is often discussed alongside G and R is the Planck Constant (h).

### Step 4: Confirm the Category
All three constants (G, R, and h) are classified as dimensional constants because they have specific dimensions associated with them.

### Step 5: Fill in the Blanks
Based on the identification:
- The first blank can be filled with "Planck constant."
- The second blank can be filled with "dimensional constant."

### Final Answer
Universal gravitational constant, universal gas constant, and **Planck constant** are some of the **dimensional constants**.

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